Category: Relation and Functions

Question Number 74014 by mathmax by abdo last updated on 17/Nov/19 $$$$$$letW\left(x\right)=\sum _{1⩽i<j⩽n}\frac{x^{i+j}}{ij}$$$$calculateW{}^{{}^{\prime }}\left(x\right).$$ Commented by mathmax by…

Question Number 74013 by mathmax by abdo last updated on 17/Nov/19 $$letP\left(x\right)=\sum _{0⩽i<j⩽n}{x}^{i+j}$$$$1)calculateP{}^{{}^{\prime }}\left(x\right)$$$$2)find{\int }_0^{1}P\left(x\right)dx$$ Commented by abdomathmax…

Question Number 73697 by mathmax by abdo last updated on 14/Nov/19 $$findaformulaeforcalculusofarctan(x+iy)$$ Commented by mathmax by abdo last updated on 15/Nov/19 $${we}\:{have}\:{proved}\:{that}\:{arctanz}\:=\frac{\mathrm{1}}{\mathrm{2}{i}}{ln}\left(\frac{\mathrm{1}+{iz}}{\mathrm{1}−{iz}}\right)\:\Rightarrow \…

Question Number 139029 by bramlexs22 last updated on 21/Apr/21 $$\mathrm{Given}\mathrm{f}(\mathrm{x}+\sqrt{1+{\mathrm{x}}^2})=\frac{\mathrm{x}}{\mathrm{x}+1}$$$$\mathrm{find}\mathrm{f}\left(\mathrm{x}\right)=?$$ Answered by EDWIN88 last updated on 21/Apr/21 $$\:\:\:\:\:\:\:\:\:\mathrm{u}=\mathrm{x}+\sqrt{\mathrm{1}+\mathrm{x}^{\mathrm{2}} } \…

Question Number 73490 by abdomathmax last updated on 13/Nov/19 $$calculatef\left(a\right)={\int }_0^{\mathrm{\infty }}{e}^{-(x^2+\frac{a}{x^2})}dxwitha>0$$ Terms of Service Privacy Policy Contact: info@tinkutara.com