Category: Vector

Question Number 210566 by Erico last updated on 12/Aug/24 $$\mathrm{Prove}\mathrm{that}:$$$$\mathrm{if}(\mathrm{x}\in ]-\frac{\pi }{2},\frac{\pi }{2}[\mathrm{y}={\underset{0}{\int }}^{\mathrm{x}}\frac{\mathrm{dt}}{\cos \left(\mathrm{t}\right)})\Rightarrow (\mathrm{y}\in \mathrm{IR}\mathrm{x}={\underset{0}{\int }}^{\mathrm{y}}\frac{\mathrm{dt}}{\cosh \left(\mathrm{t}\right)})$$ Answered by MrGaster last updated on 03/Feb/25…

Question Number 208395 by efronzo1 last updated on 14/Jun/24 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 207901 by Tawa11 last updated on 29/May/24 Answered by mr W last updated on 30/May/24 $$\mathit{v}=\frac{d\mathit{r}}{dt}=e^t(\cos t-\sin t)\mathit{i}+e^t(\sin t+\cos t)\mathit{j}$$$$\boldsymbol{{a}}=\frac{{d}\boldsymbol{{v}}}{{dt}}=−\mathrm{2}{e}^{{t}} \:\mathrm{sin}\:{t}\:\boldsymbol{{i}}+\mathrm{2}{e}^{{t}} \:\mathrm{cos}\:{t}\:\boldsymbol{{j}} \…

Question Number 206227 by bett last updated on 09/Apr/24 $$OA=\left(\stackrel{x}{4}\right)OB{=}_7^{5}andAB=5units$$ Answered by A5T last updated on 09/Apr/24 $$\sqrt{\left(\mathrm{5}−{x}\right)^{\mathrm{2}} +\left(\mathrm{7}−\mathrm{3}\right)^{\mathrm{2}} }=\mathrm{5}\Rightarrow\mathrm{25}−\mathrm{16}=\mathrm{3}^{\mathrm{2}}…

Question Number 205321 by gopikrishnan last updated on 16/Mar/24 $$\overset{\rightarrow} {{a}}=\hat {{i}}+\mathrm{3}\hat {{j}}+\mathrm{4}\hat {{k}}\:\overset{\rightarrow} {{b}}=\mathrm{2}\hat {{i}}−\mathrm{3}\hat {{j}}+\mathrm{4}\hat {{k}}\:\overset{\rightarrow} {{c}}=\mathrm{5}\hat {{i}}−\mathrm{2}\hat {{j}}+\mathrm{4}\hat {{k}}\:{given}\:{that}\:\overset{\rightarrow} {{p}}×\overset{\rightarrow} {{b}}=\overset{\rightarrow} {{b}}×\overset{\rightarrow}…