π |
4 |
π |
2 |
π |
4 |
π |
4 |
π |
4 |
π |
4 |
| ||
2 |
| ||
2 |
1 |
2 |
1-cos2x |
2 |
1 |
2 |
1 |
2 |
| ||
2 |
π |
4 |
1 |
2 |
π |
2 |
π |
4 |
π |
4 |
3π |
4 |
π |
4 |
π |
2 |
3 |
8 |
| ||
2 |
3 |
2csinA |
a |
π |
6 |
2π |
3 |
1-2sin(π-3)cos(π+3) |
A.-sin3-cos3 | B.sin3+cos3 | C.±(sin3+cos3) | D.cos3-sin3 |
A.asinB=bsinA | B.acosB=bsinA |
C.asinA=bsinB | D.asinB=bcosB |
b2+a2-c2 |
2ac |
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