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Question-177859

Question Number 177859 by neinhaltsieger369 last updated on 10/Oct/22 Answered by a.lgnaoui last updated on 10/Oct/22 $${anser}\:{ix}\left({c}\right)\:\:\:\:\frac{\mathrm{3}}{\mathrm{7}} \\ $$$$\partial{W}=\frac{\partial{W}}{\partial{x}}\partial{x}+\frac{\partial{W}}{\partial{y}}\partial{y}+\frac{\partial{W}}{\partial{z}} \\ $$$$=\frac{\mathrm{1}}{\:\left(\sqrt{{x}^{\mathrm{2}} +{y}^{\mathrm{2}} +{z}^{\mathrm{2}} \:}\:\right)^{\mathrm{2}} }\left({x}+{y}+{z}\right)=\frac{{x}+{y}+{z}}{\:{x}^{\mathrm{2}}…

Question-177835

Question Number 177835 by infinityaction last updated on 09/Oct/22 Answered by mr W last updated on 09/Oct/22 $$\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}{x}^{{n}−\mathrm{1}} =\frac{\mathrm{1}}{\mathrm{1}−{x}} \\ $$$$\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\int_{\mathrm{0}}…

Find-the-sum-of-the-first-nterms-of-the-G-P-3-1-1-3-and-show-that-the-sum-cannot-exceed-9-2-however-great-n-may-be-

Question Number 46697 by KMA last updated on 30/Oct/18 $${Find}\:{the}\:{sum}\:{of}\:{the}\:{first}\:{nterms}\: \\ $$$${of}\:{the}\:{G}.{P}\:\mathrm{3}+\mathrm{1}+\frac{\mathrm{1}}{\mathrm{3}}+…{and}\:{show}\:{that} \\ $$$${the}\:{sum}\:{cannot}\:{exceed}\:\frac{\mathrm{9}}{\mathrm{2}}\:{however} \\ $$$${great}\:{n}\:{may}\:{be}. \\ $$ Answered by Joel578 last updated on 30/Oct/18…

why-slope-is-represented-by-m-

Question Number 46674 by Nabraj Awasthi last updated on 30/Oct/18 $${why}\:{slope}\:{is}\:{represented}\:{by}\:{m} \\ $$ Answered by tanmay.chaudhury50@gmail.com last updated on 30/Oct/18 $${it}\:{is}\:{a}\:{symbol}\:{only}…{you}\:{can}\:{put}\:{any}\:{alphabet}\: \\ $$$${out}\:{of}\:\mathrm{26}…{but}\:{you}\:{have}\:{to}\:{mention}\:{that}\:{the} \\ $$$${alphabet}\:{represent}\:{slope}……

3-8-19-2x-1-6-19-plz-help-me-

Question Number 46651 by gunay last updated on 29/Oct/18 $$\mathrm{3}\frac{\mathrm{8}}{\mathrm{19}}−\mathrm{2x}=\mathrm{1}\frac{\mathrm{6}}{\mathrm{19}} \\ $$$$\mathrm{plz}\:\mathrm{help}\:\mathrm{me} \\ $$ Answered by tanmay.chaudhury50@gmail.com last updated on 29/Oct/18 $$\left(\mathrm{3}+\frac{\mathrm{8}}{\mathrm{19}}\right)−\left(\mathrm{1}+\frac{\mathrm{6}}{\mathrm{19}}\right)=\mathrm{2}{x} \\ $$$$\left(\mathrm{3}−\mathrm{1}+\frac{\mathrm{8}}{\mathrm{19}}−\frac{\mathrm{6}}{\mathrm{19}}\right)=\mathrm{2}{x} \\…

calculate-the-uncertainty-in-velocity-of-an-electron-which-is-confined-in-a-10-10-meter-

Question Number 46558 by azharkhan250963@gmail.com last updated on 28/Oct/18 $${calculate}\:{the}\:{uncertainty}\:{in}\:{velocity}\:{of}\:{an}\:{electron}\:{which}\:{is}\:{confined}\:{in}\:{a}\:\mathrm{10}^{−\mathrm{10}\:} {meter} \\ $$ Answered by tanmay.chaudhury50@gmail.com last updated on 28/Oct/18 $$\bigtriangleup{x}\bigtriangleup{p}_{{x}} =\frac{{h}}{\mathrm{4}\pi} \\ $$$$\bigtriangleup{x}\left({m}\bigtriangleup{v}_{{x}} \right)=\frac{{h}}{\mathrm{4}\pi}…

0-sin-x-x-dx-

Question Number 46502 by Ac Kesharwani last updated on 27/Oct/18 $$\int_{\mathrm{0}} ^{\infty} \left(\frac{\mathrm{sin}\:\left(\boldsymbol{\mathrm{x}}\right)}{\boldsymbol{\mathrm{x}}}\right)\boldsymbol{\mathrm{dx}} \\ $$ Commented by math khazana by abdo last updated on 27/Oct/18…

a-If-tan-1-a-tan-1-b-tan-1-c-pi-show-that-a-b-c-abc-1-b-If-tanx-nsinycosy-1-nsin-2-y-show-that-tan-y-x-1-n-tany-

Question Number 46474 by peter frank last updated on 28/Oct/18 $$\left.\mathrm{a}\right)\left[\mathrm{If}\:\mathrm{tan}^{−\mathrm{1}} \mathrm{a}+\mathrm{tan}^{−\mathrm{1}} \mathrm{b}+\mathrm{tan}^{−\mathrm{1}} \mathrm{c}=\pi\:\:\mathrm{show}\:\mathrm{that}\:\frac{\mathrm{a}+\mathrm{b}+\mathrm{c}}{\mathrm{abc}}=\mathrm{1}\right. \\ $$$$\left.\mathrm{b}\right)\left[\:\:\mathrm{If}\:\:\mathrm{tanx}=\frac{\mathrm{nsinycosy}}{\mathrm{1}−\mathrm{nsin}^{\mathrm{2}} \mathrm{y}}\right. \\ $$$$\mathrm{show}\:\mathrm{that}\:\mathrm{tan}\left(\mathrm{y}−\mathrm{x}\right)=\left(\mathrm{1}−\mathrm{n}\right)\mathrm{tany} \\ $$$$ \\ $$$$ \\ $$$$…