3 |
| ||
2 |
π |
4 |
π |
8 |
π |
2 |
1 |
2 |
3 |
1+cos2ωx |
2 |
| ||
2 |
1 |
2 |
| ||
2 |
π |
3 |
π |
4 |
π |
2 |
2π |
2ω |
π |
ω |
π |
2 |
π |
3 |
π |
8 |
π |
8 |
π |
3 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
π |
2 |
π |
6 |
5 |
6 |
π |
2 |
π |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
| ||
2 |
A.锐角三角形 |
B.直角三角形 |
C.钝角三角形 |
D.锐角三角形或钝角三角形 |
a |
b |
1 |
3 |
a |
b |
sinx+cosx |
sinx-cosx |
a |
b |
AC |
x |
2 |
x |
2 |
x |
2 |
BC |
x |
2 |
x |
2 |
x |
2 |
AC |
BC |
π |
2 |
π |
2 |
A.锐角三角形 | B.直角三角形 | C.钝角三角形 | D.不确定 |
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