Question Number 149981 by jlewis last updated on 08/Aug/21 $$\mathrm{a}\:\mathrm{full}\:\mathrm{deck}\:\mathrm{of}\:\mathrm{52}\:\mathrm{cards}\:\mathrm{contains}\:\mathrm{13} \\ $$$$\:\mathrm{hearts}.\:\mathrm{Pick}\:\mathrm{8}\:\mathrm{cards}\:\mathrm{from}\:\mathrm{the}\:\mathrm{deck} \\ $$$$\mathrm{at}\:\mathrm{random}\:\mathrm{without}\:\mathrm{replacement}. \\ $$$$\mathrm{what}\:\mathrm{is}\:\mathrm{the}\:\mathrm{probability}\:\mathrm{that}\:\mathrm{you}\:\mathrm{get} \\ $$$$\mathrm{no}\:\mathrm{heart}? \\ $$$$ \\ $$ Answered by mr…
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Question Number 18909 by Nayon last updated on 01/Aug/17 $${What}\:{does}\:\underset{} {{a}}.\underset{} {{b}}\:\:{and}\:\underset{} {{a}}×\underset{} {{b}}\:{means}\:? \\ $$$${someone}\:{please}\:{explain}\:{it}. \\ $$ Commented by mrW1 last updated on 02/Aug/17…
Question Number 18908 by Nayon last updated on 01/Aug/17 $${Why}\:{Does} \\ $$$$\mid\overset{\rightarrow} {{A}}×\overset{\rightarrow} {{B}}\mid={ABSin}\theta\:? \\ $$ Commented by mrW1 last updated on 02/Aug/17 $$\mathrm{You}\:\mathrm{can}\:\mathrm{not}\:\mathrm{ask}\:\mathrm{why}\:\mathrm{to}\:\mathrm{a}\:\mathrm{definition}. \\…
Question Number 84442 by Power last updated on 13/Mar/20 Answered by john santu last updated on 13/Mar/20 $$\mathrm{let}\:\mathrm{y}\:=\:\mathrm{x}^{\mathrm{3x}^{\mathrm{5x}} } \:\Rightarrow\mathrm{ln}\left(\mathrm{y}\right)=\:\mathrm{ln}\left(\mathrm{x}^{\mathrm{3x}^{\mathrm{5x}} } \right) \\ $$$$\mathrm{let}\:\mathrm{3x}^{\mathrm{5x}} \:=\:\mathrm{g}\left(\mathrm{x}\right)…
Question Number 18907 by Nayon last updated on 01/Aug/17 $${Why}\:{Does}\: \\ $$$$\overset{\rightarrow} {{A}}.\overset{\rightarrow} {{B}}={ABCos}\theta?\: \\ $$ Commented by Nayon last updated on 01/Aug/17 $${Mr}.{w}\mathrm{1}\:{pls}\:{explain} \\…
Question Number 18906 by Arnab Maiti last updated on 01/Aug/17 $$\mathrm{calculate}\:\frac{\mathrm{dy}}{\mathrm{dx}}\:\:\:\mathrm{where}\: \\ $$$$\mathrm{y}=\mathrm{cos}^{−\mathrm{1}} \frac{\mathrm{a}+\mathrm{b}\:\mathrm{cosx}}{\mathrm{b}+\mathrm{a}\:\mathrm{cosx}}\:\left(\mathrm{b}>\mathrm{a}\right) \\ $$ Answered by ajfour last updated on 01/Aug/17 $$\:\mathrm{y}=\mathrm{cos}^{−\mathrm{1}} \left(\frac{\mathrm{a}+\mathrm{bcos}\:\mathrm{x}}{\mathrm{b}+\mathrm{acos}\:\mathrm{x}}\right)…
Question Number 149979 by bramlexs22 last updated on 08/Aug/21 $$\: \\ $$ Commented by bramlexs22 last updated on 08/Aug/21 Commented by mindispower last updated on…
Question Number 18905 by Arnab Maiti last updated on 01/Aug/17 $$\mathrm{prove}\:\mathrm{that}\:\mathrm{the}\:\mathrm{differentiation} \\ $$$$\mathrm{of}\frac{\sqrt{\mathrm{1}+\mathrm{x}^{\mathrm{2}} }−\sqrt{\mathrm{1}−\mathrm{x}^{\mathrm{2}} }}{\:\sqrt{\mathrm{1}+\mathrm{x}^{\mathrm{2}} }+\sqrt{\mathrm{1}−\mathrm{x}^{\mathrm{2}} }}\:\:\mathrm{with}\:\mathrm{respect} \\ $$$$\mathrm{to}\:\sqrt{\mathrm{1}−\mathrm{x}^{\mathrm{4}} }\:\:\mathrm{is}\:\:\frac{\sqrt{\mathrm{1}−\mathrm{x}^{\mathrm{4}} }}{\mathrm{x}^{\mathrm{6}} } \\ $$ Terms…
Question Number 84441 by Power last updated on 13/Mar/20 Commented by Power last updated on 13/Mar/20 $$\mathrm{sir}\:\mathrm{please}\:\mathrm{solution} \\ $$ Answered by mr W last updated…