函数f(x)=sin(x+3π/2)sin(x-2π) 1）求函数f（x）的最值和最小正周期.2）计算f（π/6）+f（π/12）急
函数f(x)=sin(x+3π/2)sin(x-2π)
1）求函数f（x）的最值和最小正周期.
2）计算f（π/6）+f（π/12）急