Question Number 72608 by aliesam last updated on 30/Oct/19 Answered by mind is power last updated on 30/Oct/19 $$\mathrm{s}\left(\mathrm{x}\right)=\mathrm{n}\Rightarrow\mathrm{x}\in\left[\mathrm{10}^{\mathrm{n}−\mathrm{1}} ,\mathrm{10}^{\mathrm{n}} \left[\right.\right. \\ $$$$\mathrm{s}\left(\mathrm{y}\right)=\mathrm{m}\Rightarrow\mathrm{y}\in\left[\mathrm{10}^{\mathrm{m}−\mathrm{1}} ,\mathrm{10}^{\mathrm{m}} \left[\right.\right.…
Question Number 72606 by TawaTawa last updated on 30/Oct/19 Answered by mr W last updated on 30/Oct/19 Commented by mr W last updated on 30/Oct/19…
Question Number 138140 by liberty last updated on 10/Apr/21 $$\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{\mathrm{cos}\:\left(\mathrm{sin}\:{x}\right)−\mathrm{cos}\:{x}}{{x}^{\mathrm{4}} }=? \\ $$ Answered by EDWIN88 last updated on 10/Apr/21 $$\:{recall}\:\mathrm{cos}\:{A}−\mathrm{cos}\:{B}\:=\:\mathrm{2sin}\:\left(\frac{{B}−{A}}{\mathrm{2}}\right)\mathrm{sin}\:\left(\frac{{A}+{B}}{\mathrm{2}}\right) \\ $$$${so}\:\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{\mathrm{2sin}\:\left(\frac{{x}−\mathrm{sin}\:{x}}{\mathrm{2}}\right)\mathrm{sin}\:\left(\frac{{x}+\mathrm{sin}\:{x}}{\mathrm{2}}\right)}{{x}^{\mathrm{4}}…
Question Number 72603 by aliesam last updated on 30/Oct/19 Answered by mr W last updated on 30/Oct/19 Commented by aliesam last updated on 30/Oct/19 $${thank}\:{you}\:{sir}…
Question Number 138133 by mathmax by abdo last updated on 10/Apr/21 $$\mathrm{let}\:\mathrm{A}\:=\begin{pmatrix}{\mathrm{1}\:\:\:\:\:\:\:\:\:\:−\mathrm{1}}\\{\mathrm{2}\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{3}}\end{pmatrix} \\ $$$$\left.\mathrm{1}\right)\mathrm{calculate}\:\mathrm{e}^{\mathrm{A}} \:\:\:\:\mathrm{and}\:\mathrm{e}^{\mathrm{tA}} \\ $$$$\left.\mathrm{2}\right)\mathrm{find}\:\mathrm{cosA}\:\:,\mathrm{sinA} \\ $$$$\left.\mathrm{3}\right)\:\mathrm{find}\:\mathrm{log}\left(\mathrm{1}+\mathrm{A}\right) \\ $$ Terms of Service Privacy…
Question Number 7063 by Tawakalitu. last updated on 08/Aug/16 Commented by Tawakalitu. last updated on 08/Aug/16 $${Find}\:{the}\:{product}\:{of}\:{the}\:{question}\:{above}. \\ $$$${Please}. \\ $$ Commented by Yozzii last…
Question Number 138132 by mathmax by abdo last updated on 10/Apr/21 $$\mathrm{calculate}\:\int_{\mathrm{0}} ^{\infty} \:\frac{\mathrm{logx}}{\mathrm{x}^{\mathrm{2}} −\mathrm{x}+\mathrm{2}}\mathrm{dx} \\ $$ Answered by Ñï= last updated on 13/Apr/21 $${I}=\int_{\mathrm{0}}…
Question Number 138135 by Deepak1298 last updated on 10/Apr/21 $$\left({x}^{\mathrm{2}} +{x}^{\mathrm{3}} \right)=\mathrm{4} \\ $$$${find}\:{x}. \\ $$ Answered by ajfour last updated on 10/Apr/21 $${let}\:{x}=\frac{\mathrm{4}}{{t}} \\…
Question Number 138134 by mathmax by abdo last updated on 10/Apr/21 $$\mathrm{calculate}\:\sum_{\mathrm{n}=\mathrm{1}} ^{\infty} \:\:\frac{\left(−\mathrm{1}\right)^{\mathrm{n}} }{\mathrm{n}^{\mathrm{3}} \left(\mathrm{2n}+\mathrm{1}\right)^{\mathrm{4}} } \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 138129 by mathmax by abdo last updated on 10/Apr/21 $$\mathrm{calculate}\:\int_{\mathrm{0}} ^{\mathrm{1}} \:\frac{\mathrm{ln}\left(\mathrm{2}+\mathrm{x}^{\mathrm{2}} \right)}{\mathrm{x}^{\mathrm{2}} +\mathrm{3}}\mathrm{dx} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com