f(x) = (√3/2)sin2x - (1/2)[(cosx)^2-(sinx)^2] - 1
= (√3/2)sin2x - (1/2)cos2x - 1
= sin(2x-π/6) - 1
f(x) 的最大值是0,最小值是 -2,最小正周期是π.
f(x) = (√3/2)sin2x - (1/2)[(cosx)^2-(sinx)^2] - 1
= (√3/2)sin2x - (1/2)cos2x - 1
= sin(2x-π/6) - 1
f(x) 的最大值是0,最小值是 -2,最小正周期是π.