3 |
π |
2 |
3 |
π |
3 |
∵ω=2,∴f(x)的最小正周期为π;
令2kπ-
π |
2 |
π |
3 |
π |
2 |
5π |
12 |
π |
12 |
则f(x)单调递增区间为[kπ-
5π |
12 |
π |
12 |
(Ⅱ)根据题意得:g(x)=2sin[2(x-
π |
12 |
π |
3 |
π |
6 |
∵2x+
π |
6 |
π |
6 |
7π |
6 |
π |
6 |
则f(x)的最大值为2,最小值为-1.
3 |
π |
4 |
π |
4 |
5π |
2 |
π |
12 |
π |
2 |
3 |
π |
2 |
3 |
π |
3 |
π |
2 |
π |
3 |
π |
2 |
5π |
12 |
π |
12 |
5π |
12 |
π |
12 |
π |
12 |
π |
3 |
π |
6 |
π |
6 |
π |
6 |
7π |
6 |
π |
6 |