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已知双曲线的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,|PF1|•|P...
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已知双曲线
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJkAAAAxCAYAAADJEws5AAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
的左、右焦点分别为F
1,F
2,P是准线上一点,且PF
1⊥PF
2,|PF
1|•|PF
2|=4ab,则双曲线的离心率是( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
C.2
D.3
相关试题
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,|PF1|•|PF2|=4ab,则双曲线的离心率是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
C.2
D.3
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,|PF1|•|PF2|=4ab,则双曲线的离心率是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
C.2
D.3
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,|PF1|•|PF2|=4ab,则双曲线的离心率是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
C.2
D.3
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,|PF1|•|PF2|=4ab,则双曲线的离心率是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
C.2
D.3
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,PF1•PF2=4ab,则双曲线的离心率是________.
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,PF1•PF2=4ab,则双曲线的离心率是________.
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,PF1•PF2=4ab,则双曲线的离心率是________.
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,PF1•PF2=4ab,则双曲线的离心率是________.
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,PF1•PF2=4ab,则双曲线的离心率是________.
-
已知双曲线
的左、右焦点分别为F1,F2,P是准线上一点,且PF1⊥PF2,PF1•PF2=4ab,则双曲线的离心率是________.