4 |
3 |
3 |
2 |
1 |
2 |
x |
2 |
x |
2 |
4 |
3 |
| ||||
1+
|
1 |
2 |
sin(x-y) |
cos(x-y) |
1 |
2 |
4 |
3 |
sinx |
cosx |
4 |
3 |
16 |
25 |
3 |
2 |
4 |
5 |
x |
2 |
x |
2 |
9 |
5 |
3 |
2 |
π |
2 |
x |
2 |
3 |
4 |
x |
2 |
x |
2 |
x |
2 |
x |
2 |
3
| ||
5 |
1-2sin2xcos2x |
cos22x-sin22x |
1-tan2x |
1+tan2x |
π |
4 |
1+tanx |
1-tanx |
π |
4 |
A.f(x)与g(x) | B.g(x)与h(x) | C.h(x)与f(x) | D.f(x)与g(x)及h(x) |
3 |
π |
3 |
| ||
3 |
π |
3 |
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