Question Number 174742 by Rasheed.Sindhi last updated on 10/Aug/22 $$\:\:\:\:\:\ll_{\bullet} ^{\bullet} \underset{−} {\overline {\boldsymbol{\mathrm{I}}\:\boldsymbol{\mathrm{THINK}}…^{} }}\:_{\bullet} ^{\bullet} \gg \\ $$$$\boldsymbol{\mathrm{One}}\:\boldsymbol{\mathrm{question}}\:\boldsymbol{\mathrm{per}}\:\boldsymbol{\mathrm{post}},\:\boldsymbol{\mathrm{IDEAL}} \\ $$👍👍👍 $$\boldsymbol{\mathrm{Two}}\:\boldsymbol{\mathrm{questions}}\:\boldsymbol{\mathrm{per}}\:\boldsymbol{\mathrm{post}},\boldsymbol{\mathrm{OK}}\:\left(\boldsymbol{\mathrm{BEARABLE}}\right) \\ $$(👎+👍)/2 $$\boldsymbol{\mathrm{Three}}\:\boldsymbol{\mathrm{or}}\:\boldsymbol{\mathrm{more}}\:\boldsymbol{\mathrm{questions}}:\boldsymbol{\mathrm{NO}},\:\boldsymbol{\mathrm{NO}},\:\boldsymbol{\mathrm{NO}}!…
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Question Number 43613 by indalecioneves last updated on 12/Sep/18 $${Be}\:{the}\:{vectors}\:\overset{\rightarrow} {{a}}\:=\:\left(\mathrm{1},\:−\mathrm{1},\:\mathrm{2}\right),\:\overset{\rightarrow} {{b}}\:=\:\left(−\mathrm{5},\:\:{k},\:{k}\right)\:{and}\:\overset{\rightarrow} {{c}}\:=\:\left(\mathrm{3},\:\mathrm{1},\:\mathrm{2}\right)\:{in}\:{the} \\ $$$${rectangular}\:{Cartesian}\:{coordinate}\:{system}.\:{For}\:{any}\:{vector}\:\overset{\rightarrow} {{r}},\:{the}\:{equation}\:\overset{\rightarrow} {{r}}×\overset{\rightarrow} {{a}}\:+\:{k}\overset{\rightarrow} {{b}}\:=\:\overset{\rightarrow} {{c}}\:{has}\:{a}\:{solution}\:{when}\:{k}\:{is}\:{equal}\:{to}? \\ $$ Terms of Service…
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Question Number 174661 by Mastermind last updated on 07/Aug/22 $$\mathrm{After}\:\mathrm{being}\:\mathrm{marked}\:\mathrm{down}\:\mathrm{20}\:\mathrm{percent}. \\ $$$$\mathrm{a}\:\mathrm{calculator}\:\mathrm{sells}\:\mathrm{for}\:\$\mathrm{10}.\:\mathrm{The}\:\mathrm{Original} \\ $$$$\mathrm{selling}\:\mathrm{price}\:\mathrm{was}\:? \\ $$ Answered by Rasheed.Sindhi last updated on 07/Aug/22 $${Let}\:{original}\:{selling}\:{price}={p} \\…
Question Number 109123 by 1777 last updated on 21/Aug/20 $${prove}\:{that}\:: \\ $$$$\int_{\frac{\pi}{\mathrm{4}}} ^{\frac{\mathrm{3}\pi}{\mathrm{4}}} {sin}\left({x}\right)−{cos}\left({x}\right){dx}\:\geqslant\int_{\pi} ^{\frac{\mathrm{3}\pi}{\mathrm{2}}} {sin}\left({x}\right)+{cos}\left({x}\right){dx} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 109119 by 1777 last updated on 21/Aug/20 $${if}\:{f}\left({x}^{\mathrm{2}} \right)={y}\:\:,{f}'\left({x}\right)=\sqrt{\mathrm{5}{x}−\mathrm{1}\:}\:{then}\: \\ $$$$\frac{{dy}}{{dx}}=….. \\ $$ Answered by bemath last updated on 21/Aug/20 $$\:\:\:\:\:\:\frac{\bigtriangleup\flat{e}\mathcal{M}{ath}\bigtriangledown}{\bullet°−−−−\bullet°} \\ $$$$\:\:\Rightarrow{f}\left({x}\right)=\:\int{f}\:'\left({x}\right)\:{dx}…
Question Number 109117 by 1777 last updated on 21/Aug/20 Answered by bemath last updated on 21/Aug/20 $${approximation}\:\Rightarrow\:−\mathrm{2}.\mathrm{2360}\leqslant{y}\leqslant−\mathrm{0}.\mathrm{7071} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 109082 by 1777 last updated on 21/Aug/20 $${prove}\:{that}\:: \\ $$$$\int_{−\frac{\pi}{\mathrm{2}}} ^{−\frac{\pi}{\mathrm{4}}} \mathrm{2}{cos}\left({x}\right)+{sin}\left({x}\right){dx}\leqslant\int_{−\frac{\pi}{\mathrm{2}}} ^{−\frac{\pi}{\mathrm{4}}} {cos}\left({x}\right)−{sin}\left({x}\right){dx} \\ $$ Answered by malwan last updated on 21/Aug/20…
Question Number 174619 by cortano1 last updated on 06/Aug/22 Answered by aleks041103 last updated on 06/Aug/22 $$\Rightarrow{z}=\left({ae}^{{i}\alpha} \right)^{{n}} ={a}^{{n}} {e}^{{in}\alpha} \\ $$$${re}\left({z}\right)=\mathrm{0}\Rightarrow{cos}\left({n}\alpha\right)=\mathrm{0} \\ $$$$\Rightarrow{n}\alpha=\left({k}+\frac{\mathrm{1}}{\mathrm{2}}\right)\pi,\:{k}\in\mathbb{Z} \\…