Question Number 70710 by oyemi kemewari last updated on 07/Oct/19 $$\mathrm{pleace}\:\mathrm{how}\:\mathrm{can}\:\mathrm{link}\:\mathrm{this}\: \\ $$$$\mathrm{app}\:\mathrm{to}\:\mathrm{my}\:\mathrm{telegram} \\ $$ Answered by $@ty@m123 last updated on 07/Oct/19 $${Sorry}. \\ $$$${There}\:{is}\:{no}\:{way}\:{to}\:{link}\:{any}\:{app}\:{to}\:…
Question Number 5171 by FilupSmith last updated on 25/Apr/16 $$\mathrm{Can}\:\mathrm{you}\:\mathrm{show}\:\mathrm{why}: \\ $$$$\left({a}\right)\:\:\:\:\:\frac{{d}}{{dx}}\left(\mathrm{sin}\:{x}\right)=\mathrm{cos}\:{x} \\ $$$$\left({b}\right)\:\:\:\:\:\frac{{d}}{{dx}}\left(\mathrm{cos}\:{x}\right)=−\mathrm{sin}\:{x} \\ $$ Commented by FilupSmith last updated on 25/Apr/16 $${f}\:'\left({x}\right)=\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{{f}\left({x}+{h}\right)−{f}\left({x}\right)}{{h}}…
Question Number 136243 by Khalmohmmad last updated on 19/Mar/21 $$\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\frac{\mathrm{sin}{x}−{x}}{\mathrm{tan}{x}−{x}}=? \\ $$ Answered by EDWIN88 last updated on 20/Mar/21 $$\:\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{\mathrm{sin}\:\mathrm{x}−\mathrm{x}}{\mathrm{tan}\:\mathrm{x}−\mathrm{x}}\:=\:\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{\mathrm{cos}\:\mathrm{x}−\mathrm{1}}{\mathrm{sec}\:^{\mathrm{2}} \mathrm{x}−\mathrm{1}} \\…
Question Number 70704 by 20190927 last updated on 07/Oct/19 $$\mathrm{z}^{\mathrm{4}} −\mathrm{2z}^{\mathrm{2}} +\mathrm{2}=\mathrm{0} \\ $$ Commented by mathmax by abdo last updated on 08/Oct/19 $${z}^{\mathrm{4}} −\mathrm{2}{z}^{\mathrm{2}}…
Question Number 70705 by sadimuhmud 136 last updated on 07/Oct/19 $$\frac{\mathrm{d}}{\mathrm{dx}}\left(\mathrm{log}_{\mathrm{10}} \mathrm{x}\right)=? \\ $$ Answered by $@ty@m123 last updated on 07/Oct/19 $$\frac{\mathrm{d}}{\mathrm{dx}}\left(\frac{\mathrm{log}_{{e}} \:{x}.}{\mathrm{log}_{{e}} \:\mathrm{10}}\right)=\frac{\mathrm{1}}{\mathrm{ln}\:\mathrm{10}}.\frac{{d}}{{dx}}\left(\mathrm{ln}\:{x}\right) \\…
Question Number 5168 by Yozzii last updated on 24/Apr/16 $${Find}\:{the}\:{value}\:{of}\:\mathrm{2023}!\:\left({mod}\:\mathrm{2027}\right). \\ $$ Commented by prakash jain last updated on 27/Apr/16 $$\mathrm{If}\:\mathrm{you}\:\mathrm{find}\:\mathrm{an}\:\mathrm{answer},\:\mathrm{please}\:\mathrm{do}\:\mathrm{post}\:\mathrm{it}.\:\mathrm{I} \\ $$$$\mathrm{have}\:\mathrm{not}\:\mathrm{yet}\:\mathrm{been}\:\mathrm{able}\:\mathrm{to}\:\mathrm{solve}\:\mathrm{it}. \\ $$…
Question Number 5166 by 1771727373 last updated on 24/Apr/16 $$\int\sqrt{{a}^{\mathrm{2}} −{x}^{\mathrm{2}} }{dx}\:=\:? \\ $$ Answered by 123456 last updated on 24/Apr/16 $${x}={a}\:\mathrm{sin}\theta \\ $$$${dx}={a}\:\mathrm{cos}\theta{d}\theta \\…
Question Number 5165 by 1771727373 last updated on 24/Apr/16 $${what}\:{is} \\ $$$$\sqrt{{i}+\mathrm{1}}\:\:\:\:? \\ $$ Commented by FilupSmith last updated on 24/Apr/16 $$\mathrm{assuming}\:{i}^{\mathrm{2}} =−\mathrm{1}, \\ $$$$\mathrm{according}\:\mathrm{to}\:\mathrm{WolframAlpha}:…
Question Number 70696 by Erik_Regiomontan last updated on 07/Oct/19 $$\int{x}^{{x}} {dx}=? \\ $$ Commented by sadimuhmud 136 last updated on 07/Oct/19 $$\mathrm{error}\:\mathrm{question}.. \\ $$$$ \\…
Question Number 70694 by oyemi kemewari last updated on 07/Oct/19 Answered by mind is power last updated on 07/Oct/19 $${let}\:\frac{{y}'}{{x}}={u} \\ $$$$\Rightarrow{y}'={xu}\Rightarrow{y}''={u}+{xu}' \\ $$$${xy}''={xu}+{x}^{\mathrm{2}} {u}'…