题目内容
计算:tan600°+sin600°=( )
A.
| B.-
| C.
| D.-
|
tan600°+sin600°
=tan(720°-120°)+sin((720°-120°)
=tan(-120°)+sin(-120°)
=-tan(120°)-sin(120°)
=tan60°-sin60°=
-
=
.
故选:A.
=tan(720°-120°)+sin((720°-120°)
=tan(-120°)+sin(-120°)
=-tan(120°)-sin(120°)
=tan60°-sin60°=
| 3 |
| ||
| 2 |
| ||
| 2 |
故选:A.
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