Category: Integration

Question Number 12702 by mad last updated on 29/Apr/17 $$find\int {cos}^{2}2xdx$$ Answered by Joel577 last updated on 29/Apr/17 $${\cos }^{2}2x=\frac{1+\cos 4x}{2}$$$$\int\:\mathrm{cos}^{\mathrm{2}} \:\mathrm{2}{x}\:{dx}…

Question Number 78198 by john santu last updated on 15/Jan/20 Commented by john santu last updated on 15/Jan/20 $$dearMjssir.$$$$iaskforyouropiniononthisanswer?$$$$rightornot.$$…

Question Number 143715 by Ar Brandon last updated on 17/Jun/21 $${\int }_0^{\frac{\pi }{4}}\mathrm{tanx}\cdot \mathrm{Li}\left({\tan }^2\mathrm{x}\right)\mathrm{dx}$$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 12635 by b.e.h.i.8.3.4.1.7@gmail.com last updated on 27/Apr/17 Answered by mrW1 last updated on 27/Apr/17 $$x^2-2x\tan \phi -1$$$$=x^2-2x\tan \phi +{\tan }^2\phi -1-{\tan }^2\phi$$$$=\left({x}−\mathrm{tan}\:\varphi\right)^{\mathrm{2}}…

Question Number 78134 by msup trace by abdo last updated on 14/Jan/20 $$findthevalueof{\int }_{-\mathrm{\infty }}^{+\mathrm{\infty }}\frac{arctan\left(3x^2\right)}{x^2+4}dx$$ Commented by mathmax by abdo last…