Category: Relation and Functions

Question Number 33124 by prof Abdo imad last updated on 10/Apr/18 $$find\sum _{n=1}^{\mathrm{\infty }}\frac{1}{n(n+1)2^{n-1}}.$$ Commented by prof Abdo imad last updated on…

Question Number 98656 by mathmax by abdo last updated on 15/Jun/20 $$\mathrm{solve}{\mathrm{xy}}^{{}^{″}}+(2+{\mathrm{x}}^2){\mathrm{y}}^{{}^{\prime }}={\mathrm{xe}}^{-{\mathrm{x}}^2}$$ Answered by MWSuSon last updated on 15/Jun/20…

Question Number 33094 by abdo imad last updated on 10/Apr/18 $$letf\left(x\right)=\frac{1}{1+x+x^2}dveloppfatintegrserie.$$ Commented by prof Abdo imad last updated on 11/Apr/18 $${f}\left({x}\right)\:{is}\:{developped}\:{at}\:{form}\:{f}\left({x}\right)=\sum_{{n}=\mathrm{0}} ^{\infty}…

Question Number 33072 by prof Abdo imad last updated on 10/Apr/18 $$find\sum _{k=0}^{n}k{C}_n^k.$$ Commented by abdo imad last updated on…

Question Number 33036 by rahul 19 last updated on 09/Apr/18 $$Ifrangeof$$$$f\left(x\right)=(x+1)(x+2)(x+3)(x+4)+5$$$$x\in [-6,6]is[a,b],a,b\in N,finda+b?$$ Answered by MJS last updated on 09/Apr/18 $$\mathrm{we}\:\mathrm{need}\:\mathrm{the}\:\mathrm{minimum}\:\mathrm{and}…