y=sin(2x-π/6)√2
0 ≤ x ≤π/6
0 ≤ 2x ≤π/3
-π/6 ≤ 2x-π/6 ≤π/6
在 -π/6 ≤ 2x-π/6 ≤π/6 范围内函数单调增
2x-π/6 = π/6 时,ymax=sinπ/6 *根号2 = 1/2 *根号2 = 根号2 /2
y=sin(2x-π/6)√2
0 ≤ x ≤π/6
0 ≤ 2x ≤π/3
-π/6 ≤ 2x-π/6 ≤π/6
在 -π/6 ≤ 2x-π/6 ≤π/6 范围内函数单调增
2x-π/6 = π/6 时,ymax=sinπ/6 *根号2 = 1/2 *根号2 = 根号2 /2