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App-Updates-We-have-updated-the-app-with-below-changes-ad-banner-removed-from-all-screens-This-provides-larger-screen-area-for-equation-writing-and-avoids-distraction-confirmation-on-d

Question Number 2562 by Tinku Tara last updated on 22/Nov/15 $$\mathrm{App}\:\mathrm{Updates}: \\ $$$$\mathrm{We}\:\mathrm{have}\:\mathrm{updated}\:\mathrm{the}\:\mathrm{app}\:\mathrm{with}\:\mathrm{below}\:\mathrm{changes}: \\ $$$$\bullet\:\boldsymbol{\mathrm{ad}}\:\boldsymbol{\mathrm{banner}}\:\boldsymbol{\mathrm{removed}}\:\boldsymbol{\mathrm{from}}\:\boldsymbol{\mathrm{all}}\:\boldsymbol{\mathrm{screens}} \\ $$$$\:\:\:\:\mathrm{This}\:\mathrm{provides}\:\mathrm{larger}\:\mathrm{screen}\:\mathrm{area}\:\mathrm{for} \\ $$$$\:\:\:\:\:\mathrm{equation}\:\mathrm{writing}\:\mathrm{and}\:\mathrm{avoids}\:\mathrm{distraction}. \\ $$$$\bullet\:\boldsymbol{\mathrm{confirmation}}\:\boldsymbol{\mathrm{on}}\:\boldsymbol{\mathrm{delete}}\:\boldsymbol{\mathrm{posts}}\:\boldsymbol{\mathrm{on}}\:\boldsymbol{\mathrm{Q}}\:\boldsymbol{\mathrm{and}}\:\boldsymbol{\mathrm{A}}\:\boldsymbol{\mathrm{forum}} \\ $$ Commented by…

n-1-n-2-1-n-2-n-1-4n-2-4n-2-4n-2-4n-1-

Question Number 133628 by Ñï= last updated on 23/Feb/21 $$\underset{{n}=\mathrm{1}} {\overset{\infty} {\prod}}\left(\frac{{n}^{\mathrm{2}} +\mathrm{1}}{{n}^{\mathrm{2}} }\right)=? \\ $$$$\underset{{n}=\mathrm{1}} {\overset{\infty} {\prod}}\left(\frac{\mathrm{4}{n}^{\mathrm{2}} −\mathrm{4}{n}+\mathrm{2}}{\mathrm{4}{n}^{\mathrm{2}} −\mathrm{4}{n}+\mathrm{1}}\right)=? \\ $$ Answered by Dwaipayan…

Question-68079

Question Number 68079 by azizullah last updated on 04/Sep/19 Answered by Rasheed.Sindhi last updated on 07/Sep/19 $$\begin{pmatrix}{}&{\mathrm{son}'\mathrm{s}\:\mathrm{age}}&{\mathrm{father}'\mathrm{s}\:\mathrm{age}}\\{\mathrm{Now}}&{\:\:\:\:\:\:\:\:\:\:\mathrm{x}}&{\:\:\:\:\:\:\mathrm{x}+\mathrm{36}}\\{\mathrm{10}\:\mathrm{years}\:\mathrm{ago}}&{\:\:\:\:\:\:\mathrm{x}−\mathrm{10}}&{\:\:\:\:\:\:\mathrm{x}+\mathrm{26}}\end{pmatrix}\: \\ $$$$ \\ $$$$\:\:\:\:\mathrm{x}+\mathrm{26}=\mathrm{3}\left(\mathrm{x}−\mathrm{10}\right) \\ $$$$\left.\:\:\:\:\mathrm{x}+\mathrm{26}=\mathrm{3x}−\mathrm{30}\right) \\ $$$$\:\:\:\mathrm{2x}=\mathrm{26}+\mathrm{30}=\mathrm{56}…

Question-133601

Question Number 133601 by help last updated on 23/Feb/21 Answered by benjo_mathlover last updated on 23/Feb/21 $$\:\frac{\mathrm{sin}^{\mathrm{2}} \:\theta}{\mathrm{sin}\:\theta−\mathrm{cos}\:\theta}\:+\:\frac{\mathrm{cos}\:^{\mathrm{2}} \theta}{\mathrm{cos}\:\theta−\mathrm{sin}\:\theta}\:= \\ $$$$\:\frac{\mathrm{cos}\:^{\mathrm{2}} \theta−\mathrm{sin}\:^{\mathrm{2}} \theta}{\mathrm{cos}\:\theta−\mathrm{sin}\:\theta}\:=\:\mathrm{cos}\:\theta+\mathrm{sin}\:\theta \\ $$…