Question Number 134152 by mohammad17 last updated on 28/Feb/21 Commented by mohammad17 last updated on 28/Feb/21 $${help}\:{me}\:{sir} \\ $$ Answered by bobhans last updated on…
Question Number 68616 by Rio Michael last updated on 14/Sep/19 $${given}\:{that}\:{a},{b}\:{and}\:{c}\:{are}\:{positive}\:{numbers}\:{other}\:{than}\:\mathrm{1} \\ $$$$,\:{show}\:{that}\:\:{log}_{{b}} {a}\:×\:{log}_{{c}} {b}\:×\:{log}_{{a}} {c}\:=\:\mathrm{1} \\ $$$${hence},\:{evaluate}\:\:\:{log}_{\mathrm{10}} \mathrm{25}\:×\:{log}_{\mathrm{2}} \mathrm{10}\:×\:{log}_{\mathrm{5}} \mathrm{4} \\ $$ Answered by…
Question Number 68617 by Rio Michael last updated on 14/Sep/19 $${find}\:{the}\:{value}\:{of}\:{p}\:{given}\:{that} \\ $$$$\mathrm{3}^{{p}} \:×\:\mathrm{3}^{−\mathrm{1}} \:×\:\mathrm{5}\:×\:\mathrm{3}^{{p}−\mathrm{1}} \:=\:\mathrm{2}\:×\:\mathrm{3}^{\mathrm{4}} \\ $$ Commented by Rasheed.Sindhi last updated on 14/Sep/19…
Question Number 3077 by Filup last updated on 04/Dec/15 $$\mathrm{Read}\:\mathrm{the}\:\mathrm{following}: \\ $$$$ \\ $$$${S}=\underset{{i}=\mathrm{1}} {\overset{\infty} {\sum}}{n}^{{i}!} \\ $$$${S}={n}^{\mathrm{1}} +{n}^{\mathrm{1}×\mathrm{2}} +{n}^{\mathrm{1}×\mathrm{2}×\mathrm{3}} +… \\ $$$${S}={n}^{\mathrm{1}} \left(\mathrm{1}+{n}^{\mathrm{2}} +{n}^{\mathrm{2}×\mathrm{3}}…
Question Number 134145 by EDWIN88 last updated on 28/Feb/21 Commented by Ñï= last updated on 28/Feb/21 $${Any}\:{time}\:{any}\:\mathrm{2}\:{hands}\:{no}\:{coincide}.{I}\:{remember}. \\ $$ Commented by mr W last updated…
Question Number 68611 by TawaTawa last updated on 14/Sep/19 Answered by mind is power last updated on 15/Sep/19 $$\frac{\mathrm{1}}{{r}^{\mathrm{2}} −\mathrm{4}}=\frac{\mathrm{1}}{\mathrm{4}\left({r}−\mathrm{2}\right)}−\frac{\mathrm{1}}{\mathrm{4}\left({r}+\mathrm{2}\right)} \\ $$$$\Rightarrow\sum_{{r}=\mathrm{3}} ^{\mathrm{100}} \frac{\mathrm{1}}{{r}^{\mathrm{2}} −\mathrm{4}}=\frac{\mathrm{1}}{\mathrm{4}}\Sigma\left(\frac{\mathrm{1}}{{r}−\mathrm{2}}−\frac{\mathrm{1}}{{r}+\mathrm{2}}\right)=\frac{\mathrm{1}}{\mathrm{4}}\left(\mathrm{1}+\frac{\mathrm{1}}{\mathrm{2}}+\frac{\mathrm{1}}{\mathrm{3}}+\frac{\mathrm{1}}{\mathrm{4}}−\frac{\mathrm{1}}{\mathrm{99}}−\frac{\mathrm{1}}{\mathrm{100}}−\frac{\mathrm{1}}{\mathrm{101}}−\frac{\mathrm{1}}{\mathrm{102}}\right)…
Question Number 134147 by Ñï= last updated on 28/Feb/21 $$\underset{{n}\rightarrow\infty} {\mathrm{lim}}\int_{\mathrm{0}} ^{\mathrm{1}} {xsin}\:\left(\mathrm{2}\pi{nx}\right){dx}=? \\ $$ Answered by mathmax by abdo last updated on 28/Feb/21 $$\mathrm{let}\:\mathrm{u}_{\mathrm{n}}…
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Question Number 68609 by TawaTawa last updated on 14/Sep/19 Commented by TawaTawa last updated on 14/Sep/19 $$\mathrm{I}\:\mathrm{got}\:\mathrm{4m}/\mathrm{s}^{\mathrm{2}} \:\:\:\mathrm{in}\:\mathrm{number}\:\mathrm{14},\:\mathrm{please}\:\mathrm{help}\:\mathrm{me}\:\mathrm{check} \\ $$ Answered by mr W last…
Question Number 134142 by I want to learn more last updated on 28/Feb/21 Commented by I want to learn more last updated on 28/Feb/21 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{double}\:\mathrm{lines}\:\mathrm{that}\:\mathrm{makes}\:\mathrm{the}\:\mathrm{angle}.…