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已知函数f(x)=(sinx+cosx)^2-2倍根号3cos^2x+根号3
(1)求f(x)的单调递增区间
(2)求函数y=f(x+π/12),x属于[0,π/2]的值域
人气:224 ℃ 时间:2019-08-20 21:01:23
解答
f(x)=(sinx+cosx)^2-2倍根号3cos^2x+根号3
=1+sin2x-√3(cos2x+1)+√3
=sin2x-√3cos2x
=2sin(2x-π/3)
令2kπ-π/2
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