Question Number 58467 by azizullah last updated on 23/Apr/19 Commented by azizullah last updated on 23/Apr/19 $$\:\:\:\:\:\:\:\boldsymbol{\mathrm{please}}\:\boldsymbol{\mathrm{solve}}\:\boldsymbol{\mathrm{with}}\:\boldsymbol{\mathrm{easy}}\:\boldsymbol{\mathrm{method}}. \\ $$ Commented by tanmay last updated on…
Question Number 124000 by joki last updated on 30/Nov/20 Answered by liberty last updated on 30/Nov/20 $$\:\int\:\frac{{dx}}{\left({x}−\mathrm{2}\right)\sqrt{\left({x}−\mathrm{2}\right)^{\mathrm{2}} +\mathrm{2}^{\mathrm{2}} }}\:\:;\left[\:{x}−\mathrm{2}=\mathrm{2tan}\:{r}\:\right] \\ $$$$\mu\left({x}\right)=\int\:\frac{\mathrm{2sec}\:^{\mathrm{2}} {r}\:{dr}}{\mathrm{2tan}\:{r}\:\sqrt{\mathrm{4sec}\:^{\mathrm{2}} {r}}}\:=\:\frac{\mathrm{1}}{\mathrm{2}}\int\:\frac{\:{dr}}{\mathrm{sin}\:{r}} \\ $$$$\mu\left({x}\right)=\frac{\mathrm{1}}{\mathrm{2}}\int\:\mathrm{cosec}\:{r}\:{dr}\:=\:\frac{\mathrm{1}}{\mathrm{2}}\ell{n}\:\mid\:\mathrm{cosec}\:{r}\:−\:\mathrm{cot}\:{r}\:\mid\:+\:{c}…
Question Number 189539 by mokys last updated on 18/Mar/23 Commented by mokys last updated on 18/Mar/23 $${find}\:{x}\:? \\ $$ Commented by cortano12 last updated on…
Question Number 58462 by naka3546 last updated on 23/Apr/19 $${a},\:{b},\:{c},\:{d}\:\:\in\:\:\mathbb{R}^{+} \\ $$$${a}\:+\:{b}\:+\:{c}\:+\:{d}\:\:=\:\:\mathrm{1} \\ $$$${Prove}\:\:{that}\:\:: \\ $$$${abc}\:+\:{bcd}\:+\:{cda}\:+\:{dab}\:\:\leqslant\:\:\frac{\mathrm{1}}{\mathrm{27}}\:\:+\:\:\frac{\mathrm{176}}{\mathrm{27}}\:{abcd} \\ $$ Answered by tanmay last updated on 24/Apr/19…
Question Number 123996 by mlj5 last updated on 29/Nov/20 $$\sqrt{\frac{\mathrm{2}^{\mathrm{14}} +\mathrm{16}^{\mathrm{4}} }{\mathrm{2}^{\mathrm{16}} +\mathrm{2}^{\mathrm{22}} }}\:{calcule}\:{svp} \\ $$ Answered by john_santu last updated on 30/Nov/20 $$\sqrt{\frac{\mathrm{2}^{\mathrm{14}} +\mathrm{2}^{\mathrm{16}}…
Question Number 189521 by 073 last updated on 18/Mar/23 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 189523 by 073 last updated on 18/Mar/23 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 189522 by 073 last updated on 18/Mar/23 Commented by 073 last updated on 18/Mar/23 $$\mathrm{un}\:\mathrm{solved}\:\mathrm{problom} \\ $$ Commented by mr W last updated…
Question Number 123971 by Khalmohmmad last updated on 29/Nov/20 $$\mathrm{tan}\:{x}=−\frac{\sqrt{\mathrm{39}}}{\mathrm{3}} \\ $$$$\mathrm{cos}{x}=? \\ $$ Commented by mr W last updated on 29/Nov/20 $$\mathrm{tan}\:{x}<\mathrm{0} \\ $$$$\Rightarrow\frac{\pi}{\mathrm{2}}<{x}<\pi\:\Rightarrow\mathrm{cos}\:{x}<\mathrm{0}…
Question Number 123970 by Khalmohmmad last updated on 29/Nov/20 $${A}=\begin{bmatrix}{\mathrm{1}\:\:\:\mathrm{2}\:\:\:\:\:\mathrm{3}}\\{\mathrm{2}\:\:\:\mathrm{3}\:\:\:\:\:\mathrm{1}}\\{\mathrm{3}\:\:\:\:\mathrm{2}\:\:\:\:\mathrm{1}}\end{bmatrix} \\ $$$${det}\left({M}_{\mathrm{3}×\mathrm{3}} \right)^{{T}} =? \\ $$ Commented by MJS_new last updated on 29/Nov/20 $$\mathrm{det}\:{M}^{{T}} \:=\mathrm{det}\:{M}…