Первообразная для:
1) y=cos^2(x/2)-sin^2(x/2)
2) y=1-2sin^2(x/2)
1) y=cos^2(x/2)-sin^2(x/2)=cos(2*x/2)=cosx F(X)=sinx +C
2) y=1-2sin^2(x/2)=cos(2*x/2)=cosx F(x)=sinx +C
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Answers & Comments
1) y=cos^2(x/2)-sin^2(x/2)=cos(2*x/2)=cosx F(X)=sinx +C
2) y=1-2sin^2(x/2)=cos(2*x/2)=cosx F(x)=sinx +C