Category: Relation and Functions

Question Number 146363 by mathmax by abdo last updated on 13/Jul/21 $$\mathrm{find}{\int }_{-\mathrm{i}}^{1+\mathrm{i}}({\mathrm{x}}^2-\mathrm{iy})\mathrm{dz}\mathrm{along}\mathrm{y}={\mathrm{x}}^3$$ Answered by mathmax by abdo last updated on…

Question Number 80813 by mathmax by abdo last updated on 06/Feb/20 $$calculate\sum _{n=2}^{\mathrm{\infty }}\frac{\xi \left(n\right)-1}{n}with\xi \left(x\right)=\sum _{n=1}^{\mathrm{\infty }}\frac{1}{n^x}(x>1)$$ Answered by mind is power last…

Question Number 15262 by Tinkutara last updated on 08/Jun/17 $$\mathrm{Solve}:x^2-6x+\left[x\right]+7=0.$$ Commented by ajfour last updated on 08/Jun/17 $${(x-3)}^2=2-\left[x\right]$$$${No}\:{solution}\:. \…

Question Number 146193 by mathmax by abdo last updated on 11/Jul/21 $$\mathrm{solve}{\mathrm{y}}^{{}^{″}}-{\mathrm{y}}^{{}^{\prime }}+\mathrm{y}={\mathrm{xe}}^{-\mathrm{x}}$$ Answered by qaz last updated on 12/Jul/21 $$\mathrm{y}_{\mathrm{p}} =\frac{\mathrm{1}}{\mathrm{D}^{\mathrm{2}}…

Question Number 146197 by mathmax by abdo last updated on 11/Jul/21 $$\mathrm{calculate}{\int }_{-\mathrm{\infty }}^{+\mathrm{\infty }}\frac{\mathrm{dx}}{{({\mathrm{x}}^2-\mathrm{x}+1)}^3}$$ Answered by Olaf_Thorendsen last updated on 12/Jul/21…