| ||
2 |
π |
3 |
| ||
2 |
1+cos2ωx |
2 |
π |
6 |
1 |
2 |
2π |
2ω |
π |
2 |
π |
6 |
π |
2 |
π |
3 |
π |
6 |
π |
3 |
π |
6 |
π |
6 |
1 |
2 |
π |
3 |
π |
3 |
π |
6 |
π |
2 |
3 |
2 |
1 |
2 |
1 |
3 |
1 |
2 |
3 |
| ||
2 |
A.钝角三角形 | B.锐角三角形 |
C.等腰直角三角形 | D.等边三角形 |
DB |
DC |
DA |
AB |
AC |
A.等腰三角形 | B.直角三角形 |
C.等腰直角三角形 | D.等边三角形 |
3 |
x |
2 |
x |
2 |
x |
2 |
3 |
AB |
AC |
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