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galina0881
@galina0881
March 2022
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Нужна ваша помощь!!! Помогите решить б)
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MarieMary1
Ctg=cos/sin x sin= cos
если раскрыть скобку то получится sin^2+cos^2+2sincos= 1-(1+2sincos)= 2sincos
cos/2sincos=1/2sin
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Answers & Comments
если раскрыть скобку то получится sin^2+cos^2+2sincos= 1-(1+2sincos)= 2sincos
cos/2sincos=1/2sin