Question Number 73474 by revublik last updated on 13/Nov/19 $$\rceil\mathrm{888}>>>>>>> \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 7939 by tawakalitu last updated on 24/Sep/16 $${f}\left({x},\:{y}\right)\:=\:{xy}^{\mathrm{3}} \:+\:\mathrm{5}{xy}^{\mathrm{2}} \:+\:\mathrm{2}{x}\:+\:\mathrm{1} \\ $$$${find}:\:\:{f}_{{x}} \:,\:{f}_{{y}} \:,\:{f}_{{xx}} \:,\:{f}_{{yy}} \:,\:{f}_{{xy}} \:,\:{f}_{{yx}} \\ $$ Commented by Rasheed Soomro…
Question Number 7938 by tawakalitu last updated on 24/Sep/16 $${if}\:\:{f}\left({x}\right)\:=\:{xlog}\left({x}\:+\:{r}\right)\:−\:{r}\:\:{and}\:\:{r}^{\mathrm{2}} \:=\:{x}^{\mathrm{2}} \:+\:{y}^{\mathrm{2}} \\ $$$${prove}\:{that}:\:\:{f}_{{xx}} \:+\:{f}_{{yy}} \:\:=\:\:\frac{\mathrm{1}}{{x}\:+\:{r}} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 7937 by tawakalitu last updated on 24/Sep/16 $${f}\left({x},\:{y}\right)\:=\:{x}^{\mathrm{2}} {siny}\:+\:{cos}\left({x}\:−\:\mathrm{2}{y}\right) \\ $$$${Obtain}\:\:{f}_{{xx}} \:,\:\:{f}_{{yy}} \:,\:\:{f}_{{xy}} \:,\:\:{is}\:\:{f}\left({x},\:{y}\right)\:{contineous}\:? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 73473 by mathmax by abdo last updated on 13/Nov/19 $${let}\:{z}\:{from}\:{C}\:{prove}\:{that}\: \\ $$$${arcsinz}=−{iln}\left({iz}+\sqrt{\mathrm{1}−{z}^{\mathrm{2}} }\right) \\ $$$${arccosz}\:=−{iln}\left({z}+\sqrt{{z}^{\mathrm{2}} −\mathrm{1}}\right) \\ $$ Commented by mathmax by abdo…
Question Number 7935 by tawakalitu last updated on 24/Sep/16 $${Find}\:\:{U}_{{x}} \:,\:\:{U}_{{xy}\:} \:,\:\:{U}_{{yy}} \:\: \\ $$$${Given}\:{that}\::\:\: \\ $$$${U}\:=\:{x}^{\mathrm{3}} {y}\:−\:{siny} \\ $$ Commented by prakash jain last…
Question Number 73468 by mathocean1 last updated on 12/Nov/19 $$\mathrm{soit}\:\mathrm{le}\:\mathrm{systeme}\:\mathrm{suivant} \\ $$$$\begin{cases}{\mathrm{2s}+\mathrm{4c}+\mathrm{3t}=\mathrm{700}}\\{\mathrm{3s}+\mathrm{2c}+\mathrm{2t}=\mathrm{500}}\end{cases} \\ $$$$\:\:\mathrm{8s}+\mathrm{7c}+\mathrm{8t}=…?… \\ $$$$\mathrm{comment}\:\mathrm{determiner}\:\mathrm{le}\:\mathrm{resultat}\:…?…\: \\ $$$$\mathrm{de}\:\mathrm{la}\:\mathrm{3}^{\mathrm{e}} \mathrm{equation}\:? \\ $$ Answered by MJS last…
Question Number 7932 by tawakalitu last updated on 24/Sep/16 Commented by sou1618 last updated on 25/Sep/16 $${set}\:\:{f}\left({x}\right)=\frac{{sinx}}{\mathrm{1}+{x}^{\mathrm{2}} +{x}^{\mathrm{4}} } \\ $$$${f}\left(−{x}\right)=\frac{{sin}\left(−{x}\right)}{\mathrm{1}+\left(−{x}\right)^{\mathrm{2}} +\left(−{x}\right)^{\mathrm{4}} }=−{f}\left({x}\right) \\ $$$${so}…
Question Number 139001 by bramlexs22 last updated on 21/Apr/21 $$\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{\sqrt[{\mathrm{3}}]{\mathrm{1}+\mathrm{sin}\:^{\mathrm{2}} \mathrm{x}}−\sqrt[{\mathrm{4}}]{\mathrm{1}−\mathrm{2tan}\:\mathrm{x}}}{\mathrm{sin}\:\mathrm{x}+\mathrm{tan}\:^{\mathrm{2}} \mathrm{x}}\:=? \\ $$ Answered by EDWIN88 last updated on 21/Apr/21 $$\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\mathrm{cos}^{\mathrm{2}} \:\mathrm{x}\left(\frac{\sqrt[{\mathrm{3}}]{\mathrm{1}+\mathrm{sin}\:^{\mathrm{2}}…
Question Number 73466 by Rio Michael last updated on 12/Nov/19 $${please}\:{explain}\:{this}\: \\ $$$$\:\underset{{x}\rightarrow\mathrm{0}} {{Lim}}\frac{{sinx}}{{x}}\:=\:\mathrm{1}\:\:{by}\:{l}'{hopitals}\:{theorem} \\ $$$$ \\ $$$$\underset{{x}\rightarrow\mathrm{0}} {{Lim}}\:\frac{{sinx}}{{x}}\:=\:\mathrm{0}\:{by}\:{Squeez}\:{theorem} \\ $$$${is}\:{there}\:{something}\:{wrong}? \\ $$ Answered by…