Category: Relation and Functions

Question Number 141551 by sarkor last updated on 20/May/21 Commented by mr W last updated on 20/May/21 $$youhavepostedalotofpostswhich$$$$aremeaningless,becauseitisnot$$$$clearwhatyourquestionis.$$ Commented…

Question Number 75736 by mathmax by abdo last updated on 16/Dec/19 $$let{A}_n=\left(\begin{array}{c}\frac{\pi }{n}1\\ -1\frac{\pi }{n}\end{array}\right)withnintegrnaturalnot0$$$$1)find{A}_n^n$$$$2)calculate{lim}_{n\to +\mathrm{\infty }}{A}_n^n$$ Terms of Service…

Question Number 10170 by Joel575 last updated on 28/Jan/17 $$y.f\left(xy\right)=f\left(x\right)x,\mathrm{y}\in \mathbb{R}$$$$\mathrm{If}f\left(4\right)=1006,\mathrm{so}f\left(2012\right)=?$$ Answered by ridwan balatif last updated on 28/Jan/17 $$\mathrm{f}\left(\mathrm{xy}\right)=\frac{\mathrm{f}\left(\mathrm{x}\right)}{\mathrm{y}},\mathrm{f}\left(4\right)=1006$$$$\mathrm{if}\:\mathrm{x}=\mathrm{1}\:\mathrm{y}=\mathrm{4},\mathrm{then}…

Question Number 141219 by mathmax by abdo last updated on 16/May/21 $$\mathrm{find}\int {\int }_{{[0,1]}^2}{\mathrm{e}}^{-({\mathrm{x}}^2+{\mathrm{y}}^2)}\sqrt{{\mathrm{x}}^4+{\mathrm{y}}^4}\mathrm{dxdy}$$ Answered by Ar Brandon…

Question Number 10095 by Tawakalitu ayo mi last updated on 23/Jan/17 $$\mathrm{Prove}\mathrm{that}\mathrm{f}\left(\mathrm{x}\right)={\mathrm{x}}^2\mathrm{is}\mathrm{continous}\mathrm{at}\mathrm{x}=2$$$$\mathrm{while}\mathrm{f}\left(\mathrm{x}\right)=\{{}_{0\mathrm{x}=2}^{{\mathrm{x}}^2\mathrm{x}\ne 2}\mathrm{is}\mathrm{not}\mathrm{continous}\mathrm{at}\mathrm{x}=2$$ Answered by sandy_suhendra last updated…