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(1)sinxcosx+根号3cos平方x(2)sinxsin(x+π/6)+1/2sinxcosx化简
题目详情
(1)sinxcosx+根号3cos平方x (2)sinxsin(x+π/6)+1/2sinxcosx化简
▼优质解答
答案和解析
(1)sinxcosx+√3cos²x=1/2sin2x+√3/2cos2x+√3/2=sin(2x+π/3)+√3/2(2)sinxsin(x+π/6)+1/2sinxcosx=sinx(√3/2sinx+1/2cosx)+1/2sinxcosx=√3/2sin²x+sinxcosx后面的自己化吧!...
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