Question Number 68693 by Maclaurin Stickker last updated on 15/Sep/19 Commented by turbo msup by abdo last updated on 15/Sep/19 $${let}\:{S}_{{n}} =\sum_{{k}=\mathrm{1}} ^{{n}} \left(\frac{\mathrm{1}}{\:\sqrt{{k}}}−\frac{\mathrm{1}}{\:\sqrt{{k}+\mathrm{1}}}\right)\:\Rightarrow \\…
Question Number 134215 by Abdoulaye last updated on 01/Mar/21 $$\underset{{k}=\mathrm{0}} {\overset{{n}} {\sum}}{k}^{\mathrm{2}} \mathrm{3}^{{k}} =?? \\ $$ Answered by mr W last updated on 01/Mar/21 $${generally}:…
Question Number 134211 by rs4089 last updated on 01/Mar/21 Answered by mr W last updated on 01/Mar/21 $${u}={x}^{{m}} {y}^{{n}} \left({a}−{x}−{y}\right)^{{p}} \\ $$$$\frac{\partial{u}}{\partial{x}}={y}^{{n}} \left[{mx}^{{m}−\mathrm{1}} \left({a}−{x}−{y}\right)^{{p}} −{x}^{{m}}…
Question Number 134200 by Abdoulaye last updated on 28/Feb/21 $${how}\:{do}\:{we}\:{calculate} \\ $$$$\underset{{k}=\mathrm{0}} {\overset{{n}} {\sum}}{k}\mathrm{2}^{{k}} =? \\ $$ Answered by mr W last updated on 01/Mar/21…
Question Number 134197 by Fodele last updated on 28/Feb/21 $$\int\mathrm{2}{xdx} \\ $$ Commented by hknkrc46 last updated on 28/Feb/21 $$=\:\mathrm{2}\int\boldsymbol{{xdx}}\:=\:\mathrm{2}\frac{\boldsymbol{{x}}^{\mathrm{2}} }{\mathrm{2}}\:+\:\boldsymbol{{C}}\:=\:\boldsymbol{{x}}^{\mathrm{2}} \:+\:\boldsymbol{{C}} \\ $$ Terms…
Question Number 134198 by KimmyniaJerza last updated on 28/Feb/21 Commented by mr W last updated on 01/Mar/21 $${what}\:{do}\:{you}\:{ask}? \\ $$ Terms of Service Privacy Policy…
Question Number 3112 by Filup last updated on 05/Dec/15 $$\mathrm{let}\:{S}=\left\{{a}_{\mathrm{1}} ,\:{a}_{\mathrm{2}} ,\:…,\:{a}_{{n}} \right\}\::\:\mid{S}\mid={n} \\ $$$$ \\ $$$${S}\:\mathrm{contains}\:{n}\:\mathrm{random}\:\mathrm{integers}\:\mathrm{such}\:\mathrm{that} \\ $$$${a}\leqslant{a}_{{k}} \leqslant{b} \\ $$$$ \\ $$$$\mathrm{If}\:\mathrm{I}\:\mathrm{wanted}\:\mathrm{to}\:\mathrm{find}\:\mathrm{the}\:\mathrm{average}\:\mathrm{value} \\…
Question Number 134179 by mohammad17 last updated on 28/Feb/21 Commented by mohammad17 last updated on 28/Feb/21 $${help}\:{me}\:{sir} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 134178 by mohammad17 last updated on 28/Feb/21 Commented by mohammad17 last updated on 28/Feb/21 $${help}\:{me}\:{sir} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 68632 by aliesam last updated on 14/Sep/19 $$\left({sin}\frac{\pi}{\mathrm{9}}\:+\:{i}\:{sin}\frac{\mathrm{3}\pi}{\mathrm{18}}\right)^{−\mathrm{9}} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com