3 |
5 |
B |
2 |
B |
2 |
26 |
5 |
B |
2 |
B |
2 |
sin2
| ||||
sin
|
1 | ||||
sin
|
26 |
5 |
5 |
13 |
3 |
5 |
4 |
5 |
12 |
13 |
5 |
12 |
4 |
5 |
12 |
13 |
3 |
5 |
5 |
13 |
63 |
65 |
a |
sinA |
c |
sinC |
52 |
7 |
1 |
2 |
1 |
2 |
52 |
7 |
5 |
13 |
90 |
7 |
θ |
2 |
θ |
2 |
1 |
2 |
2sinx-3cosx |
4sinx-9cosx |
π |
3 |
3 |
5 |
4 |
A.大于1 | B.等于1 | C.小于1 | D.等于-1 |
AC |
BC |
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