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1-1-16-1-81-1-256-

Question Number 99994 by Dwaipayan Shikari last updated on 24/Jun/20 $$\mathrm{1}+\frac{\mathrm{1}}{\mathrm{16}}+\frac{\mathrm{1}}{\mathrm{81}}+\frac{\mathrm{1}}{\mathrm{256}}+…..\infty \\ $$ Answered by smridha last updated on 24/Jun/20 $$\boldsymbol{\zeta}\left(\mathrm{4}\right)=\frac{\boldsymbol{\pi}^{\mathrm{4}} }{\mathrm{90}} \\ $$ Terms…

Question-99997

Question Number 99997 by ghiniboss last updated on 24/Jun/20 Commented by Dwaipayan Shikari last updated on 24/Jun/20 $$\mathrm{3}^{{x}} =\mathrm{4}^{{x}} \\ $$$$\left(\frac{\mathrm{3}}{\mathrm{4}}\right)^{{x}} =\left(\frac{\mathrm{3}}{\mathrm{4}}\right)^{\mathrm{0}} \\ $$$${x}=\mathrm{0} \\…

A1-Events-A-and-B-are-such-that-P-A-9-30-P-B-2-5-and-P-A-B-4-5-find-a-P-A-B-b-P-A-B-c-P-B-2-A-bag-contains-3-black-balls-and-5-white-balls-Two

Question Number 34445 by Rio Mike last updated on 06/May/18 $$\left.\:{A}\mathrm{1}\right)\:\mathrm{Events}\:\mathrm{A}\:\mathrm{and}\:\mathrm{B}\:\mathrm{are}\:\mathrm{such}\:\mathrm{that} \\ $$$$\:\:{P}\left({A}\right)\:=\:\frac{\mathrm{9}}{\mathrm{30}},\:{P}\left(\boldsymbol{{B}}\right)=\:\frac{\mathrm{2}}{\mathrm{5}}\:{and}\: \\ $$$${P}\left({A}\:\cup\:{B}\right)\:=\:\frac{\mathrm{4}}{\mathrm{5}} \\ $$$$\left.{find}\:{a}\right)\:{P}\left({A}\:\cap\:{B}\right) \\ $$$$\left.\:\:\:\:\:\:\:\:\:\:\:{b}\right)\:{P}\left({A}\mid{B}\right) \\ $$$$\left.\:\:\:\:\:\:\:\:\:\:{c}\right)\:{P}\left(\bar {{B}}\right) \\ $$$$\left.\mathrm{2}\right)\:\mathrm{A}\:\mathrm{bag}\:\mathrm{contains}\:\mathrm{3}\:\mathrm{black}\:\mathrm{balls}\:\mathrm{and} \\…

1-2-1-3-1-4-

Question Number 99975 by Dwaipayan Shikari last updated on 24/Jun/20 $$\left(\frac{\mathrm{1}}{\mathrm{2}}\right)^{\left(\frac{\mathrm{1}}{\mathrm{3}}\right)^{\frac{\mathrm{1}}{\mathrm{4}}….\infty} } =? \\ $$ Answered by bachamohamed last updated on 24/Jun/20 $$\boldsymbol{{solution}}:\: \\ $$$$\boldsymbol{{on}}\:\boldsymbol{{a}}\:\:\boldsymbol{{a}}_{\boldsymbol{{n}}}…

A-particle-Q-moves-in-a-plane-and-its-polar-coordinate-r-are-described-by-r-at-2-and-1-3-t-4-find-its-speed-at-t-2s-

Question Number 99962 by Rio Michael last updated on 24/Jun/20 $$\mathrm{A}\:\mathrm{particle}\:{Q}\:\mathrm{moves}\:\mathrm{in}\:\mathrm{a}\:\mathrm{plane}\:\mathrm{and}\:\mathrm{its}\:\mathrm{polar}\:\mathrm{coordinate}\:\left({r},\theta\right) \\ $$$$\mathrm{are}\:\mathrm{described}\:\mathrm{by}\:{r}\:=\:{at}^{\mathrm{2}} \:\mathrm{and}\:\theta\:=\:\frac{\mathrm{1}}{\mathrm{3}}{t}^{\mathrm{4}} \:\mathrm{find}\:\mathrm{its} \\ $$$$\mathrm{speed}\:\mathrm{at}\:{t}\:=\:\mathrm{2s} \\ $$ Answered by smridha last updated on…

what-is-the-value-of-5-5-5-5-5-5-ignoring-64-

Question Number 34408 by Rio Mike last updated on 05/May/18 $${what}\:{is}\:{the}\:{value}\:{of}\: \\ $$$$\:\sqrt{\mathrm{5}\sqrt{\mathrm{5}\sqrt{\mathrm{5}\sqrt{\mathrm{5}\sqrt{\mathrm{5}\sqrt{\mathrm{5}}}}}}} \\ $$$${ignoring}\:\mathrm{64}. \\ $$ Commented by candre last updated on 06/May/18 $${x}=\sqrt{\mathrm{5}\sqrt{\mathrm{5}\sqrt{\mathrm{5}\sqrt{\mathrm{5}\sqrt{\mathrm{5}\sqrt{\mathrm{5}}}}}}}…

1-1-2-1-3-1-4-1-5-1-6-1-7-Find-the-sum-

Question Number 99889 by Dwaipayan Shikari last updated on 23/Jun/20 $$\mathrm{1}+\frac{\mathrm{1}}{\mathrm{2}}+\frac{\mathrm{1}}{\mathrm{3}}+\frac{\mathrm{1}}{\mathrm{4}}+\frac{\mathrm{1}}{\mathrm{5}}+\frac{\mathrm{1}}{\mathrm{6}}+\frac{\mathrm{1}}{\mathrm{7}}+…….\infty\left\{\mathrm{Find}\:\mathrm{the}\:\mathrm{sum}\right\} \\ $$ Answered by smridha last updated on 23/Jun/20 $$\boldsymbol{{this}}\:\boldsymbol{{is}}\:\boldsymbol{{called}}\:\boldsymbol{{H}}{a}\boldsymbol{{rmonic}}\:\boldsymbol{{series}} \\ $$$$\boldsymbol{{and}}\:\boldsymbol{{H}}{a}\boldsymbol{{rmonic}}\:\boldsymbol{{series}}\:\boldsymbol{{always}} \\ $$$$\boldsymbol{{diverge}}\:\boldsymbol{{so}}\:\boldsymbol{{it}}\:\boldsymbol{{has}}\:\boldsymbol{{no}}\:\boldsymbol{{finite}}\:\boldsymbol{{value}}…