Comments by "Fhf Fhf" (@fhffhff) on "Силовой Картель" channel.

  1. X⁰,⁵=y,x=y²,dx=2ydy $dy(2-2/(1+y²))=2y-2arctgy+c=2√x-2arctg√x+c
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  2. 6039π✓
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  3. X²=A(2x-1)(x²+x+1)+B(x²+x+1)+c(2x+1)(x²-x+1)+D(x²-x+1){A=1/4,B=1/4,c=-1/4,D=1/4;1/4ln|x²-x+|+1/2/√3arctg((x-1/2)*2/√3)-1/4ln|x²+x+1|+1/2/√3arctg((x+1/2)*2/√3)+c
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