sin(α-π)+cos(π-α) |
sin(π+α)-cos(π+α) |
A.3 | B.
| C.1 | D.-1 |
sin(α-π)+cos(π-α) |
sin(π+α)-cos(π+α) |
-sinα-cosα |
-sinα-(-cosα) |
sinα+cosα |
sinα-cosα |
tanα+1 |
tanα-1 |
π |
2 |
1 |
3 |
sin(π-α)cos(2π-α)•tan(-α+
| ||
cotα•sin(π+α) |
3π |
2 |
1 |
5 |
13 |
6 |
A.-
| B.
| C.-
| D.
|
1 |
3 |
| ||||
cosα+sinα |
A.-1 | B.0 | C.
| D.1 |
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