Question Number 9392 by tawakalitu last updated on 04/Dec/16 $$\mathrm{x}^{\mathrm{x}} \:=\:\mathrm{16} \\ $$$$\mathrm{find}\:\mathrm{the}\:\mathrm{value}\:\mathrm{of}\:\mathrm{x}. \\ $$$$\mathrm{please}\:\mathrm{show}\:\mathrm{workings}. \\ $$ Answered by mrW last updated on 04/Dec/16 $$\mathrm{using}\:\mathrm{Lambert}\:\boldsymbol{\mathrm{W}}\:\mathrm{function}…
Question Number 9391 by Joel575 last updated on 04/Dec/16 $$\underset{{n}=\mathrm{2}} {\overset{\mathrm{100}} {\sum}}\:\left(\mathrm{1}\:−\:\frac{\mathrm{1}}{{n}^{\mathrm{2}\:} }\right) \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 140462 by ZiYangLee last updated on 08/May/21 Commented by mr W last updated on 08/May/21 $${T}_{{n}} ={ar}^{{n}−\mathrm{1}} \\ $$$$\frac{{T}_{{n}+\mathrm{4}} −{T}_{{n}+\mathrm{2}} }{{T}_{{n}+\mathrm{1}} }=\frac{{ar}^{{n}+\mathrm{3}} −{ar}^{{n}+\mathrm{1}}…
Question Number 9387 by sandipkd@ last updated on 03/Dec/16 Commented by sandipkd@ last updated on 03/Dec/16 $${auestion}\:{no}.\:\mathrm{11}? \\ $$ Commented by mrW last updated on…
Question Number 74923 by aliesam last updated on 04/Dec/19 $$\underset{{k}=\mathrm{1}} {\overset{{n}} {\sum}}{k}^{\mathrm{3}} =\left[\frac{{n}\left({n}+\mathrm{1}\right)\:}{\mathrm{2}}\right]^{\mathrm{2}} \\ $$ Commented by aliesam last updated on 04/Dec/19 $${god}\:{bless}\:{you} \\ $$…
Question Number 140459 by EDWIN88 last updated on 08/May/21 $$\mathrm{Find}\:\mathrm{all}\:\mathrm{2}×\mathrm{2}\:\mathrm{matrices}\:\mathrm{A}\:\mathrm{with}\: \\ $$$$\:\mathrm{A}^{\mathrm{3}} −\mathrm{3A}^{\mathrm{2}} \:=\:\begin{pmatrix}{−\mathrm{2}\:\:\:\:\:\:−\mathrm{2}}\\{−\mathrm{2}\:\:\:\:\:\:−\mathrm{2}}\end{pmatrix}\:.\: \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 9382 by sandipkd@ last updated on 03/Dec/16 Commented by sandipkd@ last updated on 03/Dec/16 $${question}\:{no}.\:\mathrm{9}? \\ $$ Answered by mrW last updated on…
Question Number 9381 by tawakalitu last updated on 03/Dec/16 $$\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{2}}} \:\mathrm{ln}\:\left(\frac{\mathrm{4}\:+\:\mathrm{3sinx}}{\mathrm{4}\:+\:\mathrm{3cosx}}\right)\:\mathrm{dx} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 9380 by FilupSmith last updated on 03/Dec/16 $${S}=\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}{n}^{−{n}} \\ $$$${S}=?? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 140449 by byaw last updated on 07/May/21 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{first}\:\mathrm{four}\:\mathrm{values}\:\mathrm{of} \\ $$$$\mathrm{2}{x}+\mathrm{5}=\mathrm{1}\left(\mathrm{mod}\:\mathrm{7}\right) \\ $$ Answered by Rasheed.Sindhi last updated on 08/May/21 $$\mathrm{2}{x}+\mathrm{5}=\mathrm{1}\left(\mathrm{mod}\:\mathrm{7}\right) \\ $$$$\mathrm{2}{x}\equiv\mathrm{1}−\mathrm{5}=−\mathrm{4}\left({mod}\mathrm{7}\right) \\…