Question Number 207832 by Davidtim last updated on 28/May/24 $${Prove}\:{that}\:{Sgn}\left(\mathrm{0}\right)=\mathrm{0} \\ $$ Commented by Davidtim last updated on 28/May/24 $${help}\:{me} \\ $$ Answered by Frix…
Question Number 207833 by KweenB last updated on 28/May/24 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 207834 by efronzo1 last updated on 28/May/24 $$\:\:\:\:\underbrace{\:} \\ $$$$ \\ $$ Answered by Berbere last updated on 28/May/24 $${a}^{\mathrm{505}} ={x};{y}={b}^{\mathrm{505}} \\ $$$$\Leftrightarrow\begin{cases}{{x}+{y}.}\\{{max}\left\{{x}^{\mathrm{4}}…
Question Number 207857 by necx122 last updated on 28/May/24 $$\int{x}\mathrm{tan}^{−\mathrm{1}} {xdx} \\ $$ Answered by Ghisom last updated on 28/May/24 $$\mathrm{by}\:\mathrm{parts} \\ $$$$\int{x}\mathrm{arctan}\:{x}\:{dx}= \\ $$$$=\frac{{x}^{\mathrm{2}}…
Question Number 207825 by SANOGO last updated on 28/May/24 $${calculer}\:\left(\mathrm{1}−{a}\right)^{{k}\:\:} \::{k}\in{N} \\ $$ Answered by Simurdiera last updated on 28/May/24 $${Binomio}\:{de}\:{Newton} \\ $$ Commented by…
Question Number 207858 by SANOGO last updated on 28/May/24 $${calculer}\:\left(\mathrm{1}−{a}\right)^{{k}} \:\:/{k}\in\overset{} {{N}} \\ $$ Commented by Ghisom last updated on 29/May/24 $$\mathrm{you}\:\mathrm{asked}\:\mathrm{this}\:\mathrm{before}\:\mathrm{and}\:\mathrm{I}\:\mathrm{answered}\:\mathrm{it} \\ $$$$\mathrm{question}\:\mathrm{207825} \\…
Question Number 207852 by hardmath last updated on 28/May/24 Answered by MM42 last updated on 28/May/24 $${y}\left({y}+{x}+\mathrm{2}\right)={x}^{\mathrm{2}} \\ $$$${y}^{\mathrm{2}} +{xy}+\mathrm{2}{y}−{x}^{\mathrm{2}} =\mathrm{0}={f}\left({x},{y}\right) \\ $$$${x}=\mathrm{4}\Rightarrow{y}^{\mathrm{2}} +\mathrm{6}{y}−\mathrm{16}=\mathrm{0}\Rightarrow{y}=\mathrm{2} \\…
Question Number 207845 by hardmath last updated on 28/May/24 $$\mathrm{Find}: \\ $$$$\mathrm{1}\:+\:\frac{\mathrm{1}}{\mathrm{1}+\mathrm{2}}\:+\:\frac{\mathrm{1}}{\mathrm{1}+\mathrm{2}+\mathrm{3}}\:+…+\:\frac{\mathrm{1}}{\mathrm{1}+\mathrm{2}+\mathrm{3}+…+\mathrm{40}} \\ $$ Answered by Frix last updated on 28/May/24 $$\underset{{j}=\mathrm{1}} {\overset{{n}} {\sum}}\left(\underset{{k}=\mathrm{1}} {\overset{{j}}…
Question Number 207846 by kgmxdd last updated on 28/May/24 Answered by Frix last updated on 30/May/24 $${x}=\frac{\mathrm{2}}{\mathrm{3}−{x}} \\ $$$${x}^{\mathrm{2}} −\mathrm{3}{x}+\mathrm{2}=\mathrm{0} \\ $$$${x}=\mathrm{1}\vee{x}=\mathrm{2} \\ $$ Commented…
Question Number 207842 by Davidtim last updated on 28/May/24 $$\left(−\mathrm{1}\right)^{\infty} =? \\ $$ Answered by Frix last updated on 28/May/24 $$\mathrm{Undefined}. \\ $$ Terms of…