Category: Relation and Functions

Question Number 69790 by mathmax by abdo last updated on 27/Sep/19 $$sove(x^2-3x)y^{{}^{″}}+2x{y}^{{}^{\prime }}=(2x+1)e^{-x^2}$$ Commented by mathmax by abdo last updated…

Question Number 69786 by mathmax by abdo last updated on 27/Sep/19 $$calculate\sum _{n=1}^{\mathrm{\infty }}\frac{(2n+1){(-1)}^n}{n^2(n+1){(n+2)}^2}$$ Commented by mathmax by abdo last…

Question Number 3963 by 123456 last updated on 25/Dec/15 $$f:[0,+\mathrm{\infty })$$$$f(\alpha x+\beta )=\alpha f\left(x\right)+\beta$$$$f\left(x\right)=?$$ Answered by prakash jain last updated on 25/Dec/15 $${f}\left({x}\right)={x}…

Question Number 69376 by mathmax by abdo last updated on 22/Sep/19 $$calculate\sum _{n=1}^{\mathrm{\infty }}\frac{{(-1)}^n}{n^2{(n+1)}^3}$$ Commented by mathmax by abdo last…

Question Number 3654 by prakash jain last updated on 17/Dec/15 $$f(xf\left(y\right)+x)=xy+f\left(x\right)$$$$f:\mathbb{R}\to \mathbb{R}$$$$f\left(x\right)=?$$ Commented by RasheedSindhi last updated on 18/Dec/15 $${f}\left({xf}\left({y}\right)+{x}\right)={xy}+{f}\left({x}\right)….\left({i}\right)…