Question Number 110018 by mohammad17 last updated on 26/Aug/20 $${find}\:{the}\:{domain}\:{f}\left({x},{y}\right)={x}^{\mathrm{2}} −{y}^{\mathrm{2}} \\ $$ Answered by Aziztisffola last updated on 26/Aug/20 $$\mathbb{R}^{\mathrm{2}} \\ $$ Commented by…
Question Number 175547 by daus last updated on 02/Sep/22 Answered by mr W last updated on 02/Sep/22 $$\mathrm{cos}\:\left(\frac{\pi}{\mathrm{2}}−{x}\right)=\mathrm{cos}\:\left({x}+\frac{\pi}{\mathrm{3}}\right) \\ $$$$\Rightarrow\mathrm{2}{k}\pi+\frac{\pi}{\mathrm{2}}−{x}={x}+\frac{\pi}{\mathrm{3}} \\ $$$$\Rightarrow{x}={k}\pi+\frac{\pi}{\mathrm{12}} \\ $$$${in}\:\left(−\pi,\pi\right):\:−\frac{\mathrm{11}\pi}{\mathrm{12}},\:\frac{\pi}{\mathrm{12}} \\…
Question Number 109978 by mathdave last updated on 26/Aug/20 Answered by aurpeyz last updated on 26/Aug/20 $${you}\:{posted}\:{question}\:{and}\:{answer}? \\ $$ Commented by mathdave last updated on…
Question Number 109952 by mathdave last updated on 26/Aug/20 Answered by maths mind last updated on 30/Aug/20 $$\frac{\mathrm{1}}{{x}+\mathrm{1}}\hat {=}\underset{{k}\geqslant\mathrm{0}} {\sum}\frac{\left(−\mathrm{1}\right)^{{k}} }{\mathrm{1}+{k}}{x}^{{k}} \\ $$$$\int_{\mathrm{0}} ^{\mathrm{1}} \frac{{x}^{\mathrm{10}}…
Question Number 175483 by sciencestudent last updated on 31/Aug/22 $${Solve}\:{it}\:{by}\:{horner}'{s}\:{method}\:{and}\:{get} \\ $$$${the}\:{quotient}. \\ $$$$\mathrm{2}{x}^{\mathrm{3}} {y}+\mathrm{3}{xy}−\mathrm{5}{x}^{\mathrm{2}} {y}^{\mathrm{2}} +\mathrm{12}\boldsymbol{\div}\left(\mathrm{2}{x}−\mathrm{4}\right)=? \\ $$ Answered by Ar Brandon last updated…
Question Number 109923 by mathdave last updated on 26/Aug/20 $${find}\: \\ $$$${sin}\mathrm{3}\:\:\: \\ $$$${in}\:{surd}\:{form} \\ $$ Answered by malwan last updated on 26/Aug/20 $${sin}\:\mathrm{3}°\:=\:{sin}\:\left(\mathrm{18}−\mathrm{15}\right) \\…
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Question Number 109912 by mohammad17 last updated on 26/Aug/20 $$\left(\mathrm{1}\right)\int\mid\frac{{x}+\mathrm{3}}{{x}+\mathrm{1}}\mid{dx} \\ $$$$ \\ $$$$\left(\mathrm{2}\right)\int{x}\mid{x}−\mathrm{1}\mid{dx} \\ $$$$ \\ $$$$\left(\mathrm{3}\right)\int{e}^{\frac{{x}−\mathrm{1}}{{x}}} {dx} \\ $$ Commented by mohammad17 last…
Question Number 109913 by mohammad17 last updated on 26/Aug/20 $$\sqrt[{{x}−\mathrm{1}}]{\mathrm{16}}−\mathrm{5}\:\:\sqrt[{{x}−\mathrm{1}}]{\mathrm{4}}+\mathrm{2}=\mathrm{0}\:{find}\:{x}? \\ $$ Answered by Rasheed.Sindhi last updated on 26/Aug/20 $$\sqrt[{{x}−\mathrm{1}}]{\mathrm{16}}−\mathrm{5}\:\:\sqrt[{{x}−\mathrm{1}}]{\mathrm{4}}+\mathrm{2}=\mathrm{0}\:{find}\:{x}? \\ $$$$\mathrm{16}^{\frac{\mathrm{1}}{{x}−\mathrm{1}}} −\mathrm{5}\left(\mathrm{4}\right)^{\frac{\mathrm{1}}{{x}−\mathrm{1}}} +\mathrm{2}=\mathrm{0} \\…
Question Number 109909 by mathdave last updated on 26/Aug/20 Commented by mnjuly1970 last updated on 26/Aug/20 $${nice}\:{problem}\:{but}\:{a}\:{little}\:{bit} \\ $$$${difficult}.\:\bigstar \\ $$ Commented by mathdave last…