Category: Relation and Functions

Question Number 103457 by bobhans last updated on 15/Jul/20 $$f\left(\frac{1-x}{1+x}\right)=x+2thenwhatisthedomain$$$$andrangeof{f}^{-1}\left(x\right)?$$ Answered by Worm_Tail last updated on 15/Jul/20 $$f\left(\frac{1-x}{1+x}\right)=x+2$$$$\:\:\:\left(\frac{\mathrm{1}−{x}}{\mathrm{1}+{x}}\right)={f}^{−\mathrm{1}}…

Question Number 37894 by abdo mathsup 649 cc last updated on 19/Jun/18 $$findnatureoftheserie$$$$\sum _{n=1}^{\mathrm{\infty }}\left(\sum _{k=0}^n\frac{1}{C_n^k}\right)x^n$$ Terms of…

Question Number 37892 by abdo mathsup 649 cc last updated on 19/Jun/18 $$letf\left(x\right)=\sqrt{x+\sqrt{x+1}}$$$$1)find{D}_f$$$$2)givetheequationofassymtoteatpoint$$$$A(0,f\left(o\right))$$$$3)iff\left(x\right)\sim a(x-1)+b(x\to 1)determineaandb$$$$\left.\mathrm{4}\right)\:{calculate}\:{f}^{'} \left({x}\right) \…

Question Number 103411 by abdomsup last updated on 14/Jul/20 $$solve{x}^2{y}^{{}^{″}}+{xy}^{{}^{\prime }}+y=0$$ Answered by bemath last updated on 14/Jul/20 $$sety=x^r$$$${y}'={rx}^{{r}−\mathrm{1}}…

Question Number 37819 by prof Abdo imad last updated on 17/Jun/18 $$studytheconvergenceof$$$$u_{n+1}=u_n+ln(1+e^{-u_n})with{u}_0=0$$ Terms of Service Privacy…