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已知=-5,那么tanα的值为A.-2B.2C.D.-
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已知
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEsAAAAjCAYAAADc6ffdAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAtJJREFU
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ti5u3Xbd8D866n2wrAllAf/Wzb3JPUpYg0Jl39xqbJzMOhOA5etBNpxM8ypYu7UskvZtfVV0VbCs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)
=-5,那么tanα的值为( )
A.-2
B.2
C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAR9JREFU
SEvdVYutAyEMoyuzDpswB1OwREpCCElA9D1UqWpPqqo7cD7GMQ9oT7h9EHz7hFsgVUzgkrD0/osZ
qo5YM8SxlorJFQAX5WOBhBv1uwTraxofaikmU81xZq/VrJXkwEvP2IIrT1pbynZoH71TwnwcwaZ/
F5WJi3nSqY6qQo4JLJ82gOFDjopKi6CC7o/f8UGZMaJpp21aOcPKHNtCxhAC/XP5WjzujKfCLjX6
Bm1/JLNMkyGMFXX49hOEkfAPEhVHmXucDe3BNBCbwEokaDMbMEl0P20vwDwMaRqk8bAprk1mzpqa
z43p0+UfM/vhb1NvHPSf4N7GsKJzzwtZ1hD+RJhYMQZTN0oH6ytlcQy+RbTDMMvfagaXDkSwJykA
EYKeFaoGAAAAAElFTkSuQmCC
)
D.-
相关试题
-
已知tan2
,tan(α-β)=
,则tan(α+β)( )
A.-2
B.-1
C.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACvSURBVEhL7ZQBDoMwCEU5GXfqdbhMj9Kj/CG0
W7tVjJotmuwnGOn3BWpJCSd0BbgImBhSav5UgTCBSINFs5cczsnNCZwTgetiEQalbO+LurYz0gf8
vjbmMbx0NLTqW2jFQ9janMBtG9+DT7Xtx5fUaRq/iWHV9lFZhToIGp2v2hqSg7or3H7S3jDYngd1
BXj1JlGteA4HN0nkdW3PZ9s19/7w7+HoJgm8rvJ+3RIGHl2qQcHw4QkoAAAAAElFTkSuQmCC
)
D.-
-
已知tan2
,tan(α-β)=
,则tan(α+β)( )
A.-2
B.-1
C.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADISURBVEhL7VTJDcQgDHRl7ol23AylUMqEI2wg
cUAc+1hpI6GIOGOPryEsPLSAxSawEzAxxN25OAgTiPxhQWlOka1JRgVsDYFPj04YZOzHe0HbwjzA
92/1vQ0OjCqqKYUcvAmONBVwTuN74FjIWdqI7TO46jtSsNjFXqtihHMQ/LtopYf3hmRywDfN9kT0
tchpIcZPILoWeSJVbSXH3Vy0X5UkzImuMl0laalMR0lyKprKVNXWf0jwPziXcUO1W0rSsP38Yowv
FQ5dqkHBOutiKgAAAABJRU5ErkJggg==
)
D.-
-
已知tan2
,tan(α-β)=
,则tan(α+β)( )
A.-2
B.-1
C.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACvSURBVEhL7ZQBDoMwCEU5GXfqdbhMj9Kj/CG0
W7tVjJotmuwnGOn3BWpJCSd0BbgImBhSav5UgTCBSINFs5cczsnNCZwTgetiEQalbO+LurYz0gf8
vjbmMbx0NLTqW2jFQ9janMBtG9+DT7Xtx5fUaRq/iWHV9lFZhToIGp2v2hqSg7or3H7S3jDYngd1
BXj1JlGteA4HN0nkdW3PZ9s19/7w7+HoJgm8rvJ+3RIGHl2qQcHw4QkoAAAAAElFTkSuQmCC
)
D.-
-
已知tan2
,tan(α-β)=
,则tan(α+β)( )
A.-2
B.-1
C.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACvSURBVEhL7ZQBDoMwCEU5GXfqdbhMj9Kj/CG0
W7tVjJotmuwnGOn3BWpJCSd0BbgImBhSav5UgTCBSINFs5cczsnNCZwTgetiEQalbO+LurYz0gf8
vjbmMbx0NLTqW2jFQ9janMBtG9+DT7Xtx5fUaRq/iWHV9lFZhToIGp2v2hqSg7or3H7S3jDYngd1
BXj1JlGteA4HN0nkdW3PZ9s19/7w7+HoJgm8rvJ+3RIGHl2qQcHw4QkoAAAAAElFTkSuQmCC
)
D.-
-
已知tan2
,tan(α-β)=
,则tan(α+β)( )
A.-2
B.-1
C.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADISURBVEhL7VTJDcQgDHRl7ol23AylUMqEI2wg
cUAc+1hpI6GIOGOPryEsPLSAxSawEzAxxN25OAgTiPxhQWlOka1JRgVsDYFPj04YZOzHe0HbwjzA
92/1vQ0OjCqqKYUcvAmONBVwTuN74FjIWdqI7TO46jtSsNjFXqtihHMQ/LtopYf3hmRywDfN9kT0
tchpIcZPILoWeSJVbSXH3Vy0X5UkzImuMl0laalMR0lyKprKVNXWf0jwPziXcUO1W0rSsP38Yowv
FQ5dqkHBOutiKgAAAABJRU5ErkJggg==
)
D.-
-
已知tan2
,tan(α-β)=
,则tan(α+β)( )
A.-2
B.-1
C.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADISURBVEhL7VTJDcQgDHRl7ol23AylUMqEI2wg
cUAc+1hpI6GIOGOPryEsPLSAxSawEzAxxN25OAgTiPxhQWlOka1JRgVsDYFPj04YZOzHe0HbwjzA
92/1vQ0OjCqqKYUcvAmONBVwTuN74FjIWdqI7TO46jtSsNjFXqtihHMQ/LtopYf3hmRywDfN9kT0
tchpIcZPILoWeSJVbSXH3Vy0X5UkzImuMl0laalMR0lyKprKVNXWf0jwPziXcUO1W0rSsP38Yowv
FQ5dqkHBOutiKgAAAABJRU5ErkJggg==
)
D.-
-
已知tan(x-y)=2,tan
=3,则tan
=( )
A.-2
B.2
C.-1
D.1
-
已知:
=(tanθ,-1),
=(1,-2),若(
+
)⊥(
-
),则tanθ=( )
A.2
B.-2
C.2或-2
D.0
-
已知:
=(tanθ,-1),
=(1,-2),若(
+
)⊥(
-
),则tanθ=( )
A.2
B.-2
C.2或-2
D.0
-
已知:
=(tanθ,-1),
=(1,-2),若(
+
)⊥(
-
),则tanθ=( )
A.2
B.-2
C.2或-2
D.0