Question Number 3548 by Yozzii last updated on 15/Dec/15 $${Find}\:{all}\:{solutions}\:{x}\:{to}\:{the}\:{equation} \\ $$$${x}^{\mathrm{3}} +{bx}^{\mathrm{2}} +{cx}+{d}=\mathrm{0}\:{where}\:{b},{c},{d}\:{are}\: \\ $$$${constants}\:{from}\:\mathbb{C}.\: \\ $$$$ \\ $$ Answered by RasheedSindhi last updated…
Question Number 69082 by Henri Boucatchou last updated on 19/Sep/19 $$\boldsymbol{{Solve}}\:\:\boldsymbol{{x}}^{\mathrm{2}} \:=\:\mathrm{16}^{\boldsymbol{{x}}} \\ $$ Commented by MJS last updated on 19/Sep/19 $${f}\left({x}\right)=\mathrm{16}^{{x}} −{x}^{\mathrm{2}} \\ $$$$…
Question Number 3546 by prakash jain last updated on 15/Dec/15 $$\underset{{i}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\mathrm{1}}{{p}_{{i}} },\:{p}_{{i}} \:{is}\:{i}^{{th}} \:{prime}\:{diverges}. \\ $$$$\underset{{i}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\mathrm{1}}{{s}_{{i}} },\:{s}_{{i}} \:{is}\:{i}^{{th}} \:{whole}\:{square}\:{converges}. \\ $$$$\mathrm{Why}?…
Question Number 134619 by payamnazerian last updated on 05/Mar/21 $$\:\:\:\: \\ $$$$\:\:\:\:\:\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\left(−\mathrm{1}\right)^{\boldsymbol{{n}}−\mathrm{1}} \boldsymbol{{H}}_{{n}} }{\boldsymbol{{n}}^{\mathrm{2}} }=??? \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 134618 by Abdoulaye last updated on 05/Mar/21 $$ \\ $$$$\mathrm{prove}\:\mathrm{that}\:\mathrm{cos}\:\left(\mathrm{x}\right)\:\mathrm{does}\:\mathrm{not}\:\mathrm{admit}\:\mathrm{a} \\ $$$$\mathrm{limt}\:\mathrm{in}\:+\infty? \\ $$ Answered by Olaf last updated on 05/Mar/21 $$\mathrm{Let}\:{x}_{{n}} \:=\:\mathrm{cos}{n}…
Question Number 69081 by myintkhaing1121960@gmail.com last updated on 19/Sep/19 $${prove}\:{that} \\ $$$${tan}\:\frac{\mathrm{3}\pi}{\mathrm{7}}\:−\mathrm{4}{sin}\:\frac{\pi}{\mathrm{7}}\:=\:\sqrt{\mathrm{7}}. \\ $$ Answered by Tanmay chaudhury last updated on 19/Sep/19 $$\mathrm{7}{a}=\pi \\ $$$${tan}\mathrm{7}{a}={tan}\pi=−\mathrm{0}…
Question Number 134613 by Ñï= last updated on 05/Mar/21 $${Prove}::\int_{\mathrm{0}} ^{\pi/\mathrm{2}} {ln}\left({sin}\:{x}\right){ln}\left({cos}\:{x}\right){dx}=\frac{\pi}{\mathrm{2}}\left({ln}^{\mathrm{2}} \mathrm{2}−\frac{\pi^{\mathrm{2}} }{\mathrm{24}}\right) \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 134612 by yungtesla99 last updated on 05/Mar/21 $${please}\:{I}\:{need}\:{help}\:{contacting}\:{the}\:{forum}\:{to}\:{get}\:{a}\:{premium}\:{version}\:{of}\:{the}\:{app} \\ $$ Commented by mr W last updated on 05/Mar/21 $${write}\:{to}: \\ $$$$\mathrm{info}@\mathrm{tinkutara}.\mathrm{com} \\ $$…
Question Number 134615 by mathocean1 last updated on 05/Mar/21 $${show}\:{that}\:{for}\:{x};\:{y}\:\in\:\mathbb{Z}: \\ $$$$\left({x}+\mathrm{6}{y}\right)^{\mathrm{4}} −{x}^{\mathrm{4}} \:{is}\:{divisible}\:{by}\:\mathrm{24}. \\ $$ Answered by Olaf last updated on 05/Mar/21 $$\mathrm{Let}\:\mathrm{X}\:=\:\left({x}+\mathrm{6}{y}\right)^{\mathrm{4}} −{x}^{\mathrm{4}}…
Question Number 69074 by Aditya789 last updated on 19/Sep/19 Terms of Service Privacy Policy Contact: info@tinkutara.com