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设F1、F2分别是双曲线x2-=1的左、右焦点.若点P在双曲线上,且•=0,则|+|=A....
试题详情
设F
1、F
2分别是双曲线x
2-
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA0AAAAqCAYAAABoQtHyAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAATpJREFU
SEutVIkNxCAM41ZmHTbJHJmCJVLClwDlq65SpasOE8d28qPwmNuHQbePuQVEZnOQJ7CGqYfXEaqD
U5AHR+DTSXQBaIHy56qSutoDWVXtsCckdw0KlVzhuhZC6CFIPxv1EsiDJael21VigK20kCD/ngoR
ZY4elddWCw7VayNgiuuVN3uijHxLTKzE3I3qFl0bmx6Y6KFToJA56OTqUAIqlBBqw7Mwd6B9FTE3
N48q2as5S5Viio0ycgUpQxhAm96bW4w/8GWQXE/kmpT8+y1GbSj7kI7fR/M0zd5pL+Xct56aKtnk
twWpz6lKvKZkOuO4TOZKQDwezSG+xAxLpVFvvDntclksb+bmfmSAT0Bl7JsNtKHXe3UmhEYNVLsV
NqSBVdwMpEhejRWv1ovlMnx/yN5hxU+VHlRsq+H1G0b6AAAAAElFTkSuQmCC
)
=1的左、右焦点.若点P在双曲线上,且
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAeCAYAAAAy2w7YAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAASdJREFU
SEvtVdsNwyAMZKTs0y0YgiXYoQMwB1J2YIkrj4TY4DxaifQnkao2je3znc9EYcg1w7wMZlJbDcFJ
RWeD6fWu5VW8MO4zwSy07mM0Rro7Z9QwGCfd34G8ldyn4cLWmhyz5GkHEtqNnkmXC5GE9j5l5/+s
Z4WC09C0I8FhBCjAacUTvI07RlmVmIoTn+ff6/eBhTeg4KBZUSB1qpRF7T/HrPcJlDw72ZMKlItS
nTMbzrAAk1mezIViL0BFEn4UcSNEflzaxK6Z1RGpAiTI1iV1MR7uxAAdo042qbUk5RdStSUiI8Ft
PZ3ekXs67ajDXhPiLiymWOd3uC81tp0vMOCs87DNmiTyD9CF9+Qj3QWR5JA7pMvLup2Z9CgcYG+Z
5wP0s0U+HsYei6csFmQAAAAASUVORK5CYII=
)
•
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAeCAYAAAAy2w7YAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAUZJREFU
SEvtVtsNwyAMZKTs0y0YIkuwQwdgDqTswBIu7/hBgipB+tNIUZtifL7z4UbBkuuA/bXDgXKrJTgx
6bHD9nq39CpcsO7eYC+0nmO0Rrone8QYrJPu50DO9NynwfqztH5M2actoFDReiJdSoQ28Oe4O/1m
HEnkrQaNK+o4DAF5sFrRDc6EM4ZZ5ZiGE9bT9/p5Y+ETyFvQJClArFQpA63+FFOfIyhaG5yTBpSS
Yp0TG8owA6NeDvqCsQtQloSOImqEwI9KG9mxXt2RykAd2cQmEePADgwgGAnZeqVFKb+QiqcIjDpu
k3SkI6+KqT1kspK/ie5ZKKao/bs8L7hnSWZqpGmzzjtHJgNvxzQgoSTr6TIgPpYWATkwzKFLgJyR
o2k6UJSsNzDmAgUDEPujqT4NSAzcdHBPCacBjd6m/kAjhS7XP3TvF3u8kdvGAAAAAElFTkSuQmCC
)
=0,则|
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAeCAYAAAAy2w7YAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAASdJREFU
SEvtVdsNwyAMZKTs0y0YgiXYoQMwB1J2YIkrj4TY4DxaifQnkao2je3znc9EYcg1w7wMZlJbDcFJ
RWeD6fWu5VW8MO4zwSy07mM0Rro7Z9QwGCfd34G8ldyn4cLWmhyz5GkHEtqNnkmXC5GE9j5l5/+s
Z4WC09C0I8FhBCjAacUTvI07RlmVmIoTn+ff6/eBhTeg4KBZUSB1qpRF7T/HrPcJlDw72ZMKlItS
nTMbzrAAk1mezIViL0BFEn4UcSNEflzaxK6Z1RGpAiTI1iV1MR7uxAAdo042qbUk5RdStSUiI8Ft
PZ3ekXs67ajDXhPiLiymWOd3uC81tp0vMOCs87DNmiTyD9CF9+Qj3QWR5JA7pMvLup2Z9CgcYG+Z
5wP0s0U+HsYei6csFmQAAAAASUVORK5CYII=
)
+
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAeCAYAAAAy2w7YAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAUZJREFU
SEvtVtsNwyAMZKTs0y0YIkuwQwdgDqTswBIu7/hBgipB+tNIUZtifL7z4UbBkuuA/bXDgXKrJTgx
6bHD9nq39CpcsO7eYC+0nmO0Rrone8QYrJPu50DO9NynwfqztH5M2actoFDReiJdSoQ28Oe4O/1m
HEnkrQaNK+o4DAF5sFrRDc6EM4ZZ5ZiGE9bT9/p5Y+ETyFvQJClArFQpA63+FFOfIyhaG5yTBpSS
Yp0TG8owA6NeDvqCsQtQloSOImqEwI9KG9mxXt2RykAd2cQmEePADgwgGAnZeqVFKb+QiqcIjDpu
k3SkI6+KqT1kspK/ie5ZKKao/bs8L7hnSWZqpGmzzjtHJgNvxzQgoSTr6TIgPpYWATkwzKFLgJyR
o2k6UJSsNzDmAgUDEPujqT4NSAzcdHBPCacBjd6m/kAjhS7XP3TvF3u8kdvGAAAAAElFTkSuQmCC
)
|=( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
B.2
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALpJREFU
OE/NU9sNxCAMg43Yhy0YgiWyAwMwB1J3YAkf4XGlFLUcXxepQoU4jk2QSCGGkFKOW/N/Bo+RMmfb
97z/B0dv2JvyGY/IXq21HUAV0OevgQOBwsTYd+YIb2q7gtDXWGOuDIG4iIFnweuaz/6ycVXDT8yl
xGmegNP1CvS3/POEJXBjds5lkFUCyh5Fy8N4Bpppzh0U9gs4epg2HGntr+yiWadDZt96GIdVEMru
gbllZt9ibnavgj8IQYj6S0JMywAAAABJRU5ErkJggg==
)
D.2
相关试题
-
已知椭圆C1:
的离心率为e,且b,e,
为等比数列,曲线y=8-x2恰好过椭圆的焦点.
(1)求椭圆C1的方程;
(2)设双曲线C2:
的顶点和焦点分别是椭圆C1的焦点和顶点,设O为坐标原点,点A,B分别是C1和C2上的点,问是否存在A,B满足
.请说明理由.若存在,请求出直线AB的方程.
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhP3ZSxEcMgDEU1FwXj0LMJNYPQMogL
RvlBMsQ+IAk+U/iiOxcW9uNL+kAYBBHh9vMJPMpfydEfg5OHJg2f2hoTvC4z0R51ea4V0ZZh9uBo
CbrslrwG2Sg7z4Hl0wjbKW5zx/s9MFdyKh+5EdwWFn0LLKUPwNyaZ4LxtRXBlImbt4/4OPcxGJ5Y
0Oax1jgNL4QgWacIym27VWbB7JWfdhPlu+oOLMqOi6lYtcicOCAm/8yqx4qvXEGN3TanQMqtB7Mm
Vr1ccS12BfgFqCo/06liGrUAAAAASUVORK5CYII=
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhP3ZSxEcMgDEU1FwXj0LMJNYPQMogL
RvlBMsQ+IAk+U/iiOxcW9uNL+kAYBBHh9vMJPMpfydEfg5OHJg2f2hoTvC4z0R51ea4V0ZZh9uBo
CbrslrwG2Sg7z4Hl0wjbKW5zx/s9MFdyKh+5EdwWFn0LLKUPwNyaZ4LxtRXBlImbt4/4OPcxGJ5Y
0Oax1jgNL4QgWacIym27VWbB7JWfdhPlu+oOLMqOi6lYtcicOCAm/8yqx4qvXEGN3TanQMqtB7Mm
Vr1ccS12BfgFqCo/06liGrUAAAAASUVORK5CYII=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
D.2
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALpJREFU
OE/NU9sNxCAMg43Yhy0YgiWyAwMwB1J3YAkf4XGlFLUcXxepQoU4jk2QSCGGkFKOW/N/Bo+RMmfb
97z/B0dv2JvyGY/IXq21HUAV0OevgQOBwsTYd+YIb2q7gtDXWGOuDIG4iIFnweuaz/6ycVXDT8yl
xGmegNP1CvS3/POEJXBjds5lkFUCyh5Fy8N4Bpppzh0U9gs4epg2HGntr+yiWadDZt96GIdVEMru
gbllZt9ibnavgj8IQYj6S0JMywAAAABJRU5ErkJggg==
)
D.2
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhP3ZSxEcMgDEU1FwXj0LMJNYPQMogL
RvlBMsQ+IAk+U/iiOxcW9uNL+kAYBBHh9vMJPMpfydEfg5OHJg2f2hoTvC4z0R51ea4V0ZZh9uBo
CbrslrwG2Sg7z4Hl0wjbKW5zx/s9MFdyKh+5EdwWFn0LLKUPwNyaZ4LxtRXBlImbt4/4OPcxGJ5Y
0Oax1jgNL4QgWacIym27VWbB7JWfdhPlu+oOLMqOi6lYtcicOCAm/8yqx4qvXEGN3TanQMqtB7Mm
Vr1ccS12BfgFqCo/06liGrUAAAAASUVORK5CYII=
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhP3ZSxEcMgDEU1FwXj0LMJNYPQMogL
RvlBMsQ+IAk+U/iiOxcW9uNL+kAYBBHh9vMJPMpfydEfg5OHJg2f2hoTvC4z0R51ea4V0ZZh9uBo
CbrslrwG2Sg7z4Hl0wjbKW5zx/s9MFdyKh+5EdwWFn0LLKUPwNyaZ4LxtRXBlImbt4/4OPcxGJ5Y
0Oax1jgNL4QgWacIym27VWbB7JWfdhPlu+oOLMqOi6lYtcicOCAm/8yqx4qvXEGN3TanQMqtB7Mm
Vr1ccS12BfgFqCo/06liGrUAAAAASUVORK5CYII=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
D.2
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhP3ZSxEcMgDEU1FwXj0LMJNYPQMogL
RvlBMsQ+IAk+U/iiOxcW9uNL+kAYBBHh9vMJPMpfydEfg5OHJg2f2hoTvC4z0R51ea4V0ZZh9uBo
CbrslrwG2Sg7z4Hl0wjbKW5zx/s9MFdyKh+5EdwWFn0LLKUPwNyaZ4LxtRXBlImbt4/4OPcxGJ5Y
0Oax1jgNL4QgWacIym27VWbB7JWfdhPlu+oOLMqOi6lYtcicOCAm/8yqx4qvXEGN3TanQMqtB7Mm
Vr1ccS12BfgFqCo/06liGrUAAAAASUVORK5CYII=
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhP3ZSxEcMgDEU1FwXj0LMJNYPQMogL
RvlBMsQ+IAk+U/iiOxcW9uNL+kAYBBHh9vMJPMpfydEfg5OHJg2f2hoTvC4z0R51ea4V0ZZh9uBo
CbrslrwG2Sg7z4Hl0wjbKW5zx/s9MFdyKh+5EdwWFn0LLKUPwNyaZ4LxtRXBlImbt4/4OPcxGJ5Y
0Oax1jgNL4QgWacIym27VWbB7JWfdhPlu+oOLMqOi6lYtcicOCAm/8yqx4qvXEGN3TanQMqtB7Mm
Vr1ccS12BfgFqCo/06liGrUAAAAASUVORK5CYII=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
D.2
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALpJREFU
OE/NU9sNxCAMg43Yhy0YgiWyAwMwB1J3YAkf4XGlFLUcXxepQoU4jk2QSCGGkFKOW/N/Bo+RMmfb
97z/B0dv2JvyGY/IXq21HUAV0OevgQOBwsTYd+YIb2q7gtDXWGOuDIG4iIFnweuaz/6ycVXDT8yl
xGmegNP1CvS3/POEJXBjds5lkFUCyh5Fy8N4Bpppzh0U9gs4epg2HGntr+yiWadDZt96GIdVEMru
gbllZt9ibnavgj8IQYj6S0JMywAAAABJRU5ErkJggg==
)
D.2
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALpJREFU
OE/NU9sNxCAMg43Yhy0YgiWyAwMwB1J3YAkf4XGlFLUcXxepQoU4jk2QSCGGkFKOW/N/Bo+RMmfb
97z/B0dv2JvyGY/IXq21HUAV0OevgQOBwsTYd+YIb2q7gtDXWGOuDIG4iIFnweuaz/6ycVXDT8yl
xGmegNP1CvS3/POEJXBjds5lkFUCyh5Fy8N4Bpppzh0U9gs4epg2HGntr+yiWadDZt96GIdVEMru
gbllZt9ibnavgj8IQYj6S0JMywAAAABJRU5ErkJggg==
)
D.2
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhP3ZSxEcMgDEU1FwXj0LMJNYPQMogL
RvlBMsQ+IAk+U/iiOxcW9uNL+kAYBBHh9vMJPMpfydEfg5OHJg2f2hoTvC4z0R51ea4V0ZZh9uBo
CbrslrwG2Sg7z4Hl0wjbKW5zx/s9MFdyKh+5EdwWFn0LLKUPwNyaZ4LxtRXBlImbt4/4OPcxGJ5Y
0Oax1jgNL4QgWacIym27VWbB7JWfdhPlu+oOLMqOi6lYtcicOCAm/8yqx4qvXEGN3TanQMqtB7Mm
Vr1ccS12BfgFqCo/06liGrUAAAAASUVORK5CYII=
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhP3ZSxEcMgDEU1FwXj0LMJNYPQMogL
RvlBMsQ+IAk+U/iiOxcW9uNL+kAYBBHh9vMJPMpfydEfg5OHJg2f2hoTvC4z0R51ea4V0ZZh9uBo
CbrslrwG2Sg7z4Hl0wjbKW5zx/s9MFdyKh+5EdwWFn0LLKUPwNyaZ4LxtRXBlImbt4/4OPcxGJ5Y
0Oax1jgNL4QgWacIym27VWbB7JWfdhPlu+oOLMqOi6lYtcicOCAm/8yqx4qvXEGN3TanQMqtB7Mm
Vr1ccS12BfgFqCo/06liGrUAAAAASUVORK5CYII=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
D.2
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALpJREFU
OE/NU9sNxCAMg43Yhy0YgiWyAwMwB1J3YAkf4XGlFLUcXxepQoU4jk2QSCGGkFKOW/N/Bo+RMmfb
97z/B0dv2JvyGY/IXq21HUAV0OevgQOBwsTYd+YIb2q7gtDXWGOuDIG4iIFnweuaz/6ycVXDT8yl
xGmegNP1CvS3/POEJXBjds5lkFUCyh5Fy8N4Bpppzh0U9gs4epg2HGntr+yiWadDZt96GIdVEMru
gbllZt9ibnavgj8IQYj6S0JMywAAAABJRU5ErkJggg==
)
D.2
-
设F1、F2分别是双曲线x2-
=1的左、右焦点.若点P在双曲线上,且
•
=0,则|
+
|=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
B.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAANhJREFU
OE/dlNENwyAMRM1G7JMtGIIl2IEBmAMpO7DE1XZIGxGrTVQ+qvIT4YTH2T7HgRcNyzk3hu7vBTwu
pljhWzGT8CfgVhAooLSxIg0lkPQJFAr219dKUdN20ADXRAj9tlYCKFW9+RpYP61IJ/AYe+2/A0sm
h/TBhZCyiOivwJq6AZbS/CYYb0uRl97x5ekje0CM5qkFE7d1X4fm5Zw1Gj3Bx3WzijnSlivYKx/t
pso31SewKutDwM9u1S7zwoAsfEhUT/9XrNGDfJwPltxE9XTFe29ngB+xhDBGpK/eBwAAAABJRU5E
rkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALpJREFU
OE/NU9sNxCAMg43Yhy0YgiWyAwMwB1J3YAkf4XGlFLUcXxepQoU4jk2QSCGGkFKOW/N/Bo+RMmfb
97z/B0dv2JvyGY/IXq21HUAV0OevgQOBwsTYd+YIb2q7gtDXWGOuDIG4iIFnweuaz/6ycVXDT8yl
xGmegNP1CvS3/POEJXBjds5lkFUCyh5Fy8N4Bpppzh0U9gs4epg2HGntr+yiWadDZt96GIdVEMru
gbllZt9ibnavgj8IQYj6S0JMywAAAABJRU5ErkJggg==
)
D.2