设f(x)是定义域为R,最小正周期为3π/2的周期函数,当-π/2

因为周期为3π/2 f(-15π/4 +3T)=f(3π/4) =SIN 3π/4 = -根号2/2答案应该是根号2/2 吧对的 ~不好意思啊~~~应该是 根号2/2