OP |
3π |
4 |
OQ |
OQ |
3π |
4 |
3π |
4 |
| ||
2 |
| ||
2 |
2 |
2 |
2 |
2 |
2 |
2 |
OQ |
OP |
62+82 |
x2+y2 |
OQ |
OP |
| ||||
|
|
6x+8y |
10×10 |
OQ |
OP |
3π |
4 |
| ||
2 |
6x+8y |
100 |
|
|
|
|
2 |
2 |
2 |
2 |
A.或-1 | B.
| C.或 -
| D.-1或
|
π |
3 |
x |
2 |
π |
3 |
π |
2 |
A.函数f(x)的最小正周期为2π | ||
B.函数f(x)在区间[0,
| ||
C.函数f(x)的图象关于直线x=0对称 | ||
D.函数f(x)是奇函数 |
5π |
4 |
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