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Question Number 52949 Answers: 0 Comments: 4
$$\mathrm{If}\:{f}\left({x}\right)\:\mathrm{is}\:\mathrm{an}\:\mathrm{odd}\:\mathrm{function},\:\mathrm{then} \\ $$$$\underset{\:\mathrm{0}} {\overset{\pi} {\int}}\:{f}\:\left(\mathrm{cos}\:{x}\right)\:{dx}\:=\:\mathrm{2}\underset{\:\mathrm{0}} {\overset{\pi/\mathrm{2}} {\int}}\:{f}\:\left(\mathrm{cos}\:{x}\right)\:{dx} \\ $$
Question Number 52948 Answers: 2 Comments: 1
$$\mathrm{If}\:\:\:{f}\left({x}\right)\:=\underset{\:\mathrm{1}} {\overset{{x}} {\int}}\:\frac{\mathrm{log}\:{t}}{\mathrm{1}+{t}}\:{dt},\:\mathrm{then} \\ $$$$\:{f}\left({x}\right)+{f}\:\left(\frac{\mathrm{1}}{{x}}\:\right)=\frac{\mathrm{1}}{\mathrm{2}}\left(\mathrm{log}\:{x}\right)^{\mathrm{2}} \\ $$
Question Number 52947 Answers: 1 Comments: 0
$$\underset{\:\mathrm{0}} {\overset{\pi} {\int}}\:\:\frac{{x}\:\mathrm{tan}\:{x}}{\mathrm{sec}\:{x}+\mathrm{cos}\:{x}}\:{dx}\:= \\ $$
Question Number 52944 Answers: 1 Comments: 0
$$\int_{\:\mathrm{0}} ^{\:\mathrm{1}} \:\:\frac{\boldsymbol{\mathrm{x}}^{\mathrm{3}} \:−\:\mathrm{1}}{\left(\mathrm{1}\:+\:\boldsymbol{\mathrm{x}}^{\mathrm{2}} \right)\:\boldsymbol{\mathrm{ln}}\:\boldsymbol{\mathrm{x}}}\:\:\boldsymbol{\mathrm{dx}} \\ $$
Question Number 52938 Answers: 0 Comments: 3
Question Number 52936 Answers: 0 Comments: 1
Question Number 52946 Answers: 1 Comments: 1
$$\underset{\:\mathrm{0}} {\overset{\pi/\mathrm{2}} {\int}}\:\:\mathrm{log}\:\mathrm{sin}\:\mathrm{2}{x}\:{dx}\:= \\ $$
Question Number 52945 Answers: 3 Comments: 2
Question Number 52911 Answers: 2 Comments: 2
Question Number 52898 Answers: 1 Comments: 0
$$\int\mathrm{arcsin}\:{x}\:\mathrm{arccos}\:{x}\:{dx}=? \\ $$
Question Number 52900 Answers: 3 Comments: 0
$$\underset{\mathrm{0}} {\overset{\frac{\pi}{\mathrm{2}}} {\int}}\mathrm{sin}\:{x}\:\sqrt{\mathrm{sin}\:\mathrm{2}{x}}\:{dx}=? \\ $$$$\underset{−\frac{\pi}{\mathrm{4}}} {\overset{\frac{\pi}{\mathrm{4}}} {\int}}\mathrm{cos}\:{x}\:\sqrt{\mathrm{cos}\:\mathrm{2}{x}}\:{dx}=? \\ $$
Question Number 52867 Answers: 1 Comments: 0
Question Number 52859 Answers: 0 Comments: 3
Question Number 52847 Answers: 0 Comments: 2
Question Number 52846 Answers: 1 Comments: 0
Question Number 52845 Answers: 1 Comments: 0
Question Number 52841 Answers: 1 Comments: 4
Question Number 52881 Answers: 1 Comments: 9
Question Number 52825 Answers: 1 Comments: 4
Question Number 52820 Answers: 1 Comments: 0
$${y}\:=\:{log}\left\{\sqrt{{x}}\:+\frac{\mathrm{1}}{\sqrt{{x}}\:\:\:}\right\}^{\mathrm{2}} \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: \\ $$$${show}\:{that} \\ $$$${x}\left({x}+\mathrm{1}\right)^{\mathrm{2}} {y}_{\mathrm{2}} \:+\:\left({x}+\mathrm{1}\right)^{\mathrm{2}} {y}_{\mathrm{1}} \:=\:\mathrm{2} \\ $$
Question Number 52818 Answers: 1 Comments: 0
Question Number 52814 Answers: 0 Comments: 6
Question Number 52808 Answers: 0 Comments: 0
Question Number 52806 Answers: 1 Comments: 2
Question Number 52802 Answers: 0 Comments: 0
Question Number 52795 Answers: 2 Comments: 0
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