(Ⅰ)当x∈[0, ]时,求f(x)的最大值;
(Ⅱ)请用“五点作图法”画出f(x)在[0,π]上的图象.
x﹣ | |||||
x | |||||
3sin( x﹣ ) |
ωx+φ | 0 |
| π |
| 2π |
x |
|
| |||
Asin(ωx+φ)+B | 3 | -1 |
| 0 |
|
|
|
|
|
|
| |||
| 0 | 2 | -2 | 0 |
0 |
π |
2π |
|||
4 |
1 |
-2 |
4 |