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Valusha4683
@Valusha4683
July 2022
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Помогите решить
sin^2 x+cos^2 2x=1
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Celldweller
Sin^2 x+cos^2 2x=sin^2 x+cos^2 x
cos^2 2x=cos^2 x
cos^2 x - sin^2 x=cos^2 x
-sin^2 x=0
sinx=0
x=Пk
2 votes
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Answers & Comments
cos^2 2x=cos^2 x
cos^2 x - sin^2 x=cos^2 x
-sin^2 x=0
sinx=0
x=Пk