| ||||
2sin(
|
x |
2 |
x |
2 |
π |
3 |
cos2α+
| ||
sin2α-cos2α |
| ||||
2sin(
|
x |
2 |
x |
2 |
2
| ||
2cosx |
3 |
π |
2 |
a2+3 |
| ||
a |
|
π |
3 |
π |
3 |
cos2α+
| ||
sin2α-cos2α |
cos2α+sinαcosα |
sin2α-cos2α |
1+tanα |
tan2α-1 |
1+2 |
22-1 |
2cosθ | ||
sin(
|
A.-2 | B.2 | C.0 | D.
|
7π |
4 |
3π |
4 |
4 |
5 |
4 |
5 |
π |
2 |
π |
4 |
2π |
4 |
3π |
4 |
2011π |
4 |
3π |
2 |
1 |
2 |
π |
2 |
5π |
6 |
A.-
| B.-
| C.-
| D.
|
sin(2π-α)sin(π+α)cos(-π-α) |
sin(3π-α)•cos(π-α) |
3 |
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