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f(x)=[1+sin(2x+π/3)]方+cos方(2x+3)-2怎么化简
详细
人气:126 ℃ 时间:2020-05-27 08:12:19
解答
f(x)=1+2sin(2x+π/3)+[sin²(2x+π/3)+cos²(2x+π/3)]-2
=1+2sin(2x+π/3)+1-2
=2sin(2x+π/3)
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