π |
6 |
x |
2 |
3 |
π |
6 |
x |
2 |
| ||
2 |
1 |
2 |
| ||
2 |
1 |
2 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
5π |
6 |
π |
6 |
π |
6 |
a |
sinA |
B |
sinB |
1 | ||
|
| ||
sinC |
| ||
2 |
π |
3 |
2π |
3 |
π |
3 |
π |
2 |
b2+c2 |
2π |
3 |
π |
6 |
π |
6 |
π |
12 |
π |
12 |
A.
| B.
| C.π | D.2π |
θ |
2 |
θ |
2 |
θ |
2 |
θ |
2 |
A.a<-1 | B.a>-1 | C.a≤-3 | D.a≥-3 |
π |
2 |
π |
8 |
3π |
8 |
nπ |
6 |
A.f(x)=sinx+cosx | B.f(x)=|tan
| ||
C.f(x)=|sin2x| | D.f(x)=sin(x+
|
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