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Category: Integration

x-1-1-x-1-1-dx-

Question Number 85596 by M±th+et£s last updated on 23/Mar/20 x+11x1+1dx Commented by mathmax by abdo last updated on 23/Mar/20 A=x+11x1+1dxchagementx1+1=tgivex1=t1$${x}−\mathrm{1}\:=\left({t}−\mathrm{1}\right)^{\mathrm{2}} \:\Rightarrow{dx}\:=\mathrm{2}\left({t}−\mathrm{1}\right){dt}\:\Rightarrow…

1-4u-4u-2-2u-2-du-

Question Number 85591 by sahnaz last updated on 23/Mar/20 1+4u4u2+2u+2du Answered by john santu last updated on 23/Mar/20 $$−\frac{\mathrm{1}}{\mathrm{2}}\int\:\frac{\mathrm{2}}{\mathrm{3}\left(\mathrm{2}{u}+\mathrm{1}\right)}{du}+\int\:\frac{\mathrm{5}}{\mathrm{3}\left({u}−\mathrm{1}\right)}{du} \