y=-2sin(2x-π/3) x∈[0,5/3]的值域为多少

问题描述:

y=-2sin(2x-π/3) x∈[0,5/3]的值域为多少

x∈[0,5/3],
则2x-π/3∈[-π/3,(10-π)/3]
又π/2