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求函数y=cos(x+π/3)-sin(x+π/3)的最大值最小值和周期
人气:441 ℃ 时间:2019-08-17 22:52:37
解答
y=cos(x+π/3)+sin(x+π/3)
=根号下2sin(x+π/3+π/4)
=根号下2sin(x+7π/12)
-根号下2
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