Question Number 177900 by yaslm last updated on 10/Oct/22 Answered by Ar Brandon last updated on 11/Oct/22 $${I}_{{n}} =\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{2}}} \mathrm{sin}^{{n}} {xdx} \\ $$$${I}_{{n}+\mathrm{2}} =\int_{\mathrm{0}}…
Question Number 112364 by john santu last updated on 07/Sep/20 $$\left(\mathrm{1}\right)\:{Let}\:{z}\:=\:\sqrt{\mathrm{3}+\mathrm{4}{i}}\:+\:\sqrt{−\mathrm{3}−\mathrm{4}{i}}\:,\:{where} \\ $$$${square}\:{root}\:{is}\:{taken}\:{with}\:{positive}\: \\ $$$${real}\:{part}.\:{Then}\:{Re}\left({z}\right)\:{is}\:\_ \\ $$$$\left({a}\right)\mathrm{3}\:\:\:\:\:\left({b}\right)\:\mathrm{4}\:\:\:\:\:\left({c}\right)\:\mathrm{2}\:\:\:\:\:\left({d}\right)\:\mathrm{1} \\ $$$$\left(\mathrm{2}\right){Suppose}\:{a},{b},{c}\:{are}\:{in}\:{AP}\:{and}\:{a}^{\mathrm{2}} ,{b}^{\mathrm{2}} ,{c}^{\mathrm{2}} \\ $$$${are}\:{in}\:{GP}.\:{If}\:{a}<{b}<{c}\:{and}\:{a}+{b}+{c}=\frac{\mathrm{3}}{\mathrm{2}}, \\ $$$${then}\:{a}\:=\:\_…
Question Number 177884 by DAVONG last updated on 10/Oct/22 Answered by mr W last updated on 10/Oct/22 $$\mathrm{6}\:{black}\:{and}\:{n}\:{red}\:{balls}\:{in}\:{bag}. \\ $$$${to}\:{take}\:\mathrm{3}\:{balls}\:{there}\:{are}\:{totally} \\ $$$${C}_{\mathrm{3}} ^{{n}+\mathrm{6}} \:{ways}. \\…
Question Number 177890 by sciencestudent last updated on 10/Oct/22 Commented by sciencestudent last updated on 10/Oct/22 $${Is}\:{it}\:{right}? \\ $$ Commented by sciencestudent last updated on…
Question Number 177880 by DAVONG last updated on 10/Oct/22 Answered by mr W last updated on 10/Oct/22 $$\left(\mathrm{1}+{x}\right)^{{n}} =\underset{{k}=\mathrm{0}} {\overset{{n}} {\sum}}{C}_{{k}} ^{{n}} {x}^{{k}} \\ $$$${n}\left(\mathrm{1}+{x}\right)^{{n}−\mathrm{1}}…
Question Number 177886 by Ml last updated on 10/Oct/22 Commented by Frix last updated on 10/Oct/22 $$\mathrm{see}\:\mathrm{question}\:\mathrm{168556} \\ $$ Answered by Spillover last updated on…
Question Number 177875 by mathdave last updated on 10/Oct/22 Commented by mathdave last updated on 10/Oct/22 $${pls}\:{help}\:{ooooo} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 46802 by hassentimol last updated on 31/Oct/18 $$\mathrm{Can}\:\mathrm{someone}\:\mathrm{please}\:\mathrm{help}\:\mathrm{me}\:\mathrm{for}\:\mathrm{the}\:\mathrm{following}: \\ $$$$ \\ $$$$\mathrm{Solve}\:\mathrm{fot}\:{x}\:\left(\mathrm{exact}\:\mathrm{value}\:\mathrm{with}\:\mathrm{formulas}\right)\:: \\ $$$$ \\ $$$$\mathrm{17}{x}^{\mathrm{4}} \:+\:\mathrm{7}{x}^{\mathrm{3}} \:−\:\sqrt{\mathrm{11}}\mathrm{x}^{\mathrm{2}} \:−\:\mathrm{18}{x}\:+\:\mathrm{3}\:=\:\mathrm{0} \\ $$$$ \\ $$$$\mathrm{Thank}\:\mathrm{you}…
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Question Number 112331 by mohammad17 last updated on 07/Sep/20 Commented by mohammad17 last updated on 07/Sep/20 $${solve}\:{the}\:{differential}\:{equation} \\ $$ Commented by mohammad17 last updated on…