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The-second-overtone-of-a-fixed-viberating-string-fixed-at-both-end-is-200cm-Find-the-length-of-the-string-

Question Number 18502 by tawa tawa last updated on 22/Jul/17 $$\mathrm{The}\:\mathrm{second}\:\mathrm{overtone}\:\mathrm{of}\:\mathrm{a}\:\mathrm{fixed}\:\mathrm{viberating}\:\mathrm{string}\:\mathrm{fixed}\:\mathrm{at}\:\mathrm{both}\:\mathrm{end}\:\mathrm{is}\:\mathrm{200cm}. \\ $$$$\mathrm{Find}\:\mathrm{the}\:\mathrm{length}\:\mathrm{of}\:\mathrm{the}\:\mathrm{string}. \\ $$ Answered by ajfour last updated on 23/Jul/17 $$\mathrm{L}=\mathrm{n}\frac{\lambda}{\mathrm{2}} \\ $$$$\mathrm{for}\:\mathrm{second}\:\mathrm{overtone}\:\mathrm{n}=\mathrm{3}…

Question-84021

Question Number 84021 by TANMAY PANACEA last updated on 08/Mar/20 Commented by abdomathmax last updated on 09/Mar/20 $${I}\:=\int_{\mathrm{0}} ^{\mathrm{2}} \:\frac{{ln}\left(\mathrm{1}+\mathrm{2}{x}\right)}{\mathrm{1}+{x}^{\mathrm{2}} }\:\:{let}\:{f}\left({a}\right)\:=\int_{\mathrm{0}} ^{\mathrm{2}} \:\frac{{ln}\left({a}+\mathrm{2}{x}\right)}{\mathrm{1}+{x}^{\mathrm{2}} }{dx} \\…

The-solid-angle-subtended-by-a-spherical-surface-of-radius-R-at-its-centre-is-pi-2-steradian-then-the-surface-area-of-corresponding-spherical-section-is-

Question Number 18463 by Tinkutara last updated on 22/Jul/17 $$\mathrm{The}\:\mathrm{solid}\:\mathrm{angle}\:\mathrm{subtended}\:\mathrm{by}\:\mathrm{a}\:\mathrm{spherical} \\ $$$$\mathrm{surface}\:\mathrm{of}\:\mathrm{radius}\:{R}\:\mathrm{at}\:\mathrm{its}\:\mathrm{centre}\:\mathrm{is}\:\frac{\pi}{\mathrm{2}} \\ $$$$\mathrm{steradian},\:\mathrm{then}\:\mathrm{the}\:\mathrm{surface}\:\mathrm{area}\:\mathrm{of} \\ $$$$\mathrm{corresponding}\:\mathrm{spherical}\:\mathrm{section}\:\mathrm{is} \\ $$ Answered by ajfour last updated on 22/Jul/17…

Question-18460

Question Number 18460 by tawa tawa last updated on 21/Jul/17 Answered by sandy_suhendra last updated on 23/Jul/17 $$\mathrm{P}_{\mathrm{bulb}} =\mathrm{5}\:\mathrm{w} \\ $$$$\mathrm{V}_{\mathrm{bulb}} =\mathrm{170}\:\mathrm{V} \\ $$$$\mathrm{I}_{\mathrm{bulb}} \:=\:\frac{\mathrm{P}_{\mathrm{bulb}}…

Find-the-locus-of-the-points-represented-by-the-complex-number-z-such-that-2-z-3-z-6i-

Question Number 83991 by Rio Michael last updated on 08/Mar/20 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{locus}\:\mathrm{of}\:\mathrm{the}\:\mathrm{points}\:\mathrm{represented}\:\mathrm{by} \\ $$$$\mathrm{the}\:\mathrm{complex}\:\mathrm{number}\:,{z},\:\mathrm{such}\:\mathrm{that} \\ $$$$\:\:\:\:\:\:\:\:\:\mathrm{2}\mid{z}−\mathrm{3}\mid\:=\:\mid{z}−\mathrm{6i}\mid \\ $$ Commented by mathmax by abdo last updated on…

find-a-cos-3x-cos-5x-dx-b-xln-2x-dx-

Question Number 83989 by Rio Michael last updated on 08/Mar/20 $$\mathrm{find}\:\: \\ $$$$\mathrm{a}.\:\:\:\int\mathrm{cos}\:\mathrm{3}{x}\:\mathrm{cos}\:\mathrm{5}{x}\:{dx} \\ $$$$\mathrm{b}.\:\:\int{x}\mathrm{ln}\:\mathrm{2}{x}\:{dx} \\ $$ Commented by jagoll last updated on 08/Mar/20 $$\mathrm{a}.\:\int\:\frac{\mathrm{1}}{\mathrm{2}}\left(\mathrm{cos}\:\mathrm{8x}+\mathrm{cos}\:\mathrm{2x}\right)\:\mathrm{dx}\:=…