Question Number 72148 by daniyal_ahmad last updated on 25/Oct/19 Commented by daniyal_ahmad last updated on 25/Oct/19 $$\mathrm{plese}\:\mathrm{any}\:\mathrm{one}\:\mathrm{solve}\:\mathrm{this}\:\mathrm{problem}. \\ $$ Terms of Service Privacy Policy Contact:…
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Question Number 6612 by Temp last updated on 05/Jul/16 $${S}=\sqrt{\mathrm{2}+\sqrt{\mathrm{4}+\sqrt{\mathrm{6}+\sqrt{…}}}} \\ $$$${S}=??? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 6610 by Temp last updated on 05/Jul/16 $$\mathrm{If}\:\mathrm{you}\:\mathrm{have}\:\mathrm{a}\:\mathrm{real}\:\mathrm{continuous}\:\mathrm{function}\:{f}\left({x}\right), \\ $$$$\mathrm{If}\:\mathrm{you}\:\mathrm{take}\:\mathrm{a}\:\mathrm{distance}\:\mathrm{between} \\ $$$${f}\left({x}\right)\:\mathrm{and}\:{f}\left({x}+\mathrm{1}\right),\:\mathrm{what}\:\mathrm{is}\:\mathrm{the}\:\mathrm{average} \\ $$$$\mathrm{distance}\:\mathrm{within}\:{a}\leqslant{x}\leqslant{b}? \\ $$ Commented by Temp last updated on 05/Jul/16…
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Question Number 6609 by Temp last updated on 05/Jul/16 $$\mathrm{You}\:\mathrm{have}\:\mathrm{a}\:\mathrm{1×1}\:\mathrm{cm}\:\mathrm{square}.\:\mathrm{If}\:\mathrm{you}\:\mathrm{pick} \\ $$$$\mathrm{two}\:\mathrm{random}\:\mathrm{points}\:\mathrm{inside}\:\mathrm{the}\:\mathrm{square}, \\ $$$$\mathrm{what}\:\mathrm{is}\:\mathrm{the}\:\mathrm{average}\:\mathrm{distance}\:\mathrm{between} \\ $$$$\mathrm{those}\:\mathrm{points}? \\ $$ Commented by prakash jain last updated on…
Question Number 72145 by Maclaurin Stickker last updated on 25/Oct/19 $${prove}\:{that}: \\ $$$$\mathrm{cos}\:\alpha×\mathrm{cos}\:\mathrm{2}\alpha×{cos}\:\mathrm{2}^{\mathrm{2}} \alpha…{cos}\:\mathrm{2}^{{n}} \alpha \\ $$$$=\frac{\mathrm{sin}\:\mathrm{2}^{{n}+\mathrm{1}} \alpha}{\mathrm{2}^{{n}+\mathrm{1}} \mathrm{sin}\:\alpha} \\ $$$$ \\ $$ Commented by…
Question Number 6605 by WAI LIN last updated on 05/Jul/16 $${Let}\:{c}\:{be}\:{a}\:{constant}.\:{Using}\:{Var}\left({X}\right)\:=\:{E}\:\left[\left({X}−\:{E}\:\left[{X}\right]\right)^{\mathrm{2}} \right],\:{show}\:{that} \\ $$$$\left({a}\right)\:{Var}\left({c}\:{X}\right)\:=\:{c}^{\mathrm{2}} \:{Var}\left({X}\right); \\ $$$$\left({b}\right)\:{Var}\:\left(\:{c}+{X}\right)\:=\:{Var}\left({X}\right). \\ $$ Commented by prakash jain last updated…
Question Number 137678 by otchereabdullai@gmail.com last updated on 05/Apr/21 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{numbers}\:\mathrm{a}\:\mathrm{and}\:\mathrm{b}\:\mathrm{such}\:\mathrm{that} \\ $$$$\mathrm{x}^{\mathrm{2}} −\mathrm{4x}−\mathrm{5}=\mathrm{a}+\left(\mathrm{a}+\mathrm{b}\right)^{\mathrm{2}} \\ $$ Commented by mr W last updated on 05/Apr/21 $${LHS}\:{is}\:{a}\:{function}!\:{you}\:{can}\:{not}\: \\…
Question Number 6604 by WAI LIN last updated on 05/Jul/16 $${If}\:{the}\:{density}\:{function}\:{of}\:{X}\:{equals} \\ $$$${f}\left({x}\right)\:=\:\begin{cases}{{c}\:{e}^{−\mathrm{2}{x}} \:,\:\mathrm{0}<{x}<\infty}\\{\mathrm{0}\:,\:\:\:\:\:\:\:\:\:\:{x}<\mathrm{0}}\end{cases} \\ $$$${find}\:{c}.\:{What}\:{is}\:{P}\left\{{X}>\mathrm{2}\right\}? \\ $$ Commented by prakash jain last updated on…