Question Number 69314 by mezihloic last updated on 22/Sep/19 $${if}\:\mathrm{5}\:{x}\:{y}\:\mathrm{40}\:{are}\:{in}\:{GP}\:.{find}\:{x}\:{and}\:{y} \\ $$ Commented by Rasheed.Sindhi last updated on 22/Sep/19 $$\frac{{x}}{\mathrm{5}}=\frac{{y}}{{x}}=\frac{\mathrm{40}}{{y}} \\ $$$${xy}=\mathrm{200} \\ $$$${x}^{\mathrm{2}} =\mathrm{5}{y}\Rightarrow{x}^{\mathrm{2}}…
Question Number 134848 by mohammad17 last updated on 07/Mar/21 Commented by mohammad17 last updated on 07/Mar/21 $${solve}\:{by}\:{laplase}\:{transform}\:{sir} \\ $$ Commented by mohammad17 last updated on…
Question Number 134845 by mnjuly1970 last updated on 07/Mar/21 $$\:\:\:\:\:\:\:\:\:\:\:{advanced}\:\:{calculus}… \\ $$$$\:\:\:\:\:\:\:\:\:\int_{\mathrm{0}} ^{\:\mathrm{1}} {x}\psi\left(\mathrm{1}+{x}\right){dx}=?? \\ $$$$\:\:\:\:\:\:\:\:…{m}.{n}… \\ $$ Answered by Dwaipayan Shikari last updated on…
Question Number 3775 by Yozzii last updated on 20/Dec/15 $${Let}\:{a}_{{i}} \:\left(\mathrm{1}\leqslant{i}\leqslant\mathrm{10}\right)\:{be}\:{the}\:{roots}\:{of}\:{the} \\ $$$${equation}\:\underset{{m}=\mathrm{1}} {\overset{\mathrm{10}} {\sum}}{mx}^{{m}} =\mathrm{0}.\:{Prove}\:{that} \\ $$$$\mathrm{100}\underset{{i}=\mathrm{1}} {\overset{\mathrm{10}} {\prod}}\left({a}_{{i}} ^{\mathrm{2}} +\mathrm{1}\right)=\mathrm{61}. \\ $$$$\left({An}\:{algebra}\:{question}\:{as}\:{seen}\:{on}\:{Brilliant}.\right) \\…
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Question Number 134841 by Ar Brandon last updated on 07/Mar/21 $$\int_{\mathrm{0}} ^{\mathrm{1}} \mathrm{y}^{\mathrm{2}} \mathrm{ln}\left(\frac{\mathrm{y}^{\mathrm{2}} −\mathrm{1}}{\mathrm{y}^{\mathrm{2}} }\right)\mathrm{ln}\left(\frac{\mathrm{y}+\mathrm{1}}{\mathrm{y}}\right)\mathrm{dy} \\ $$$${From}\:{Q}\mathrm{134820} \\ $$ Terms of Service Privacy Policy…
Question Number 134843 by Raxreedoroid last updated on 07/Mar/21 $$\mathrm{what}\:\mathrm{is}\:{f}\left({x}\right)? \\ $$$$\mathrm{such}\:\mathrm{that}\:\frac{{f}\left({x}\right)}{{x}}+{f}\:'\left({x}\right)\mathrm{ln}\:{x}=\mathrm{0} \\ $$ Commented by PRITHWISH SEN 2 last updated on 07/Mar/21 $$\frac{\mathrm{C}}{\mathrm{lnx}}\:\:\left(\mathrm{C}=\:\mathrm{constant}\right) \\…
Question Number 3768 by Filup last updated on 19/Dec/15 $$\mathrm{let}\:\:{a},\:{b}\:\mathrm{and}\:{c}\:\mathrm{be}\:\mathrm{irrational}. \\ $$$${That}\:{is}: \\ $$$${a},\:{b},\:{c}\in\mathbb{R}/\mathbb{Q} \\ $$$$ \\ $$$$\mathrm{Is}\:\mathrm{it}\:\mathrm{possible}\:\mathrm{for}: \\ $$$${c}=\frac{{a}}{{b}}? \\ $$ Commented by 123456…
Question Number 134839 by SOMEDAVONG last updated on 07/Mar/21 $$\mathrm{Solve}\:,\:\mathrm{S}_{\mathrm{n}} =\:\mathrm{1}+\mathrm{2}×\mathrm{2}+\mathrm{3}×\mathrm{2}^{\mathrm{2}} +\mathrm{4}×\mathrm{2}^{\mathrm{3}} +…+\mathrm{n}×\mathrm{2}^{\mathrm{n}−\mathrm{1}} . \\ $$ Commented by mr W last updated on 07/Mar/21 $${see}\:{Q}\mathrm{134200}…
Question Number 3764 by 123456 last updated on 19/Dec/15 $$\mathrm{if}\:\frac{{df}}{{dx}}={f},\:\mathrm{what}\:\mathrm{are}\:\mathrm{the}\:\mathrm{value}\:\mathrm{of} \\ $$$$\frac{{d}\theta}{{dx}}?\:\left(\mathrm{Q3707}\right) \\ $$ Commented by Filup last updated on 19/Dec/15 $$\mathrm{Attempt}: \\ $$$$ \\…