1 |
2 |
1+2sinθcosθ |
sin2θ-cos2θ |
sin(2π-α)cos(
| ||
sin(-π-α)sin(
|
1 |
2 |
(sinθ+cosθ)2 |
sin2θ-cos2θ |
(sinθ+cosθ)2 |
(sinθ+cosθ)(sinθ-cosθ) |
sinθ+cosθ |
sinθ-cosθ |
tanθ+1 |
tanθ-1 |
-
| ||
-
|
1 |
3 |
(-sinα)•(-sinα) |
(sinα)(cosα) |
x |
2 |
x |
2 |
cos2x | ||||
|
1-sin2170° |
A.cos170° | B.-cos170° | C.±cos170° | D.±|cos170°| |
4
| ||
7 |
11 |
14 |
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