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Author: Tinku Tara

if-x-x-y-y-z-z-x-y-y-z-z-x-x-z-y-x-z-y-such-that-x-y-and-z-are-positive-intigers-greater-than-1-what-is-the-value-of-xyz-and-x-y-z-

Question Number 84393 by agniv123 last updated on 12/Mar/20 $${if}\:{x}^{{x}} .{y}^{{y}} .{z}^{{z}} ={x}^{{y}} .{y}^{{z}} .{z}^{{x}} ={x}^{{z}} .{y}^{{x}} .{z}^{{y}} \:{such}\:{that}\:{x},\:{y}\:{and}\:{z}\: \\ $$$${are}\:{positive}\:{intigers}\:{greater}\:{than}\:\mathrm{1} \\ $$$$,{what}\:{is}\:{the}\:{value}\:{of}\:{xyz}\:{and}\:{x}+{y}+{z}\:? \\ $$…

x-4-x-2-dx-

Question Number 84386 by M±th+et£s last updated on 12/Mar/20 $$\int\sqrt{{x}−\sqrt{\mathrm{4}−{x}^{\mathrm{2}} }}\:{dx} \\ $$ Answered by mind is power last updated on 13/Mar/20 $${x}=\mathrm{2}{sin}\left({t}\right)\Rightarrow \\ $$$$=\int\mathrm{2}{cos}\left({t}\right)\sqrt{\mathrm{2}{sin}\left({t}\right)−\mathrm{2}{cos}\left({t}\right)}{dt}\:\:{let}…

0-2-dt-4-2-sint-6-

Question Number 149917 by mathdanisur last updated on 08/Aug/21 $$\underset{\:\mathrm{0}} {\overset{\:\mathrm{2}\boldsymbol{\pi}} {\int}}\frac{\mathrm{dt}}{\mathrm{4}\sqrt{\mathrm{2}}\:\mathrm{sin}\boldsymbol{\mathrm{t}}\:+\:\mathrm{6}}\:=\:? \\ $$ Answered by mathmax by abdo last updated on 08/Aug/21 $$\Psi=\int_{\mathrm{0}} ^{\mathrm{2}\pi}…

In-an-equilateral-triangle-with-usual-notations-the-value-of-27r-2-R-r-1-r-2-r-3-is-equal-to-

Question Number 18847 by Tinkutara last updated on 30/Jul/17 $$\mathrm{In}\:\mathrm{an}\:\mathrm{equilateral}\:\mathrm{triangle}\:\mathrm{with}\:\mathrm{usual} \\ $$$$\mathrm{notations}\:\mathrm{the}\:\mathrm{value}\:\mathrm{of}\:\frac{\mathrm{27}{r}^{\mathrm{2}} {R}}{{r}_{\mathrm{1}} {r}_{\mathrm{2}} {r}_{\mathrm{3}} }\:\mathrm{is}\:\mathrm{equal}\:\mathrm{to} \\ $$ Answered by behi.8.3.4.1.7@gmail.com last updated on 31/Jul/17…

There-are-two-crystalline-forms-of-PbO-one-is-yellow-and-the-other-is-red-The-standard-enthalpies-of-formation-of-these-two-forms-are-217-3-and-219-kJ-per-mole-respectively-Calculate-the-enthalp

Question Number 18846 by Tinkutara last updated on 30/Jul/17 $$\mathrm{There}\:\mathrm{are}\:\mathrm{two}\:\mathrm{crystalline}\:\mathrm{forms}\:\mathrm{of}\:\mathrm{PbO}\:; \\ $$$$\mathrm{one}\:\mathrm{is}\:\mathrm{yellow}\:\mathrm{and}\:\mathrm{the}\:\mathrm{other}\:\mathrm{is}\:\mathrm{red}.\:\mathrm{The} \\ $$$$\mathrm{standard}\:\mathrm{enthalpies}\:\mathrm{of}\:\mathrm{formation}\:\mathrm{of} \\ $$$$\mathrm{these}\:\mathrm{two}\:\mathrm{forms}\:\mathrm{are}\:−\mathrm{217}.\mathrm{3}\:\mathrm{and}\:−\mathrm{219} \\ $$$$\mathrm{kJ}\:\mathrm{per}\:\mathrm{mole}\:\mathrm{respectively}.\:\mathrm{Calculate}\:\mathrm{the} \\ $$$$\mathrm{enthalpy}\:\mathrm{change}\:\mathrm{for}\:\mathrm{the}\:\mathrm{solid}-\mathrm{solid} \\ $$$$\mathrm{phase}\:\mathrm{transition}. \\ $$$$\mathrm{PbO}\:\left(\mathrm{yellow}\right)\:\rightarrow\:\mathrm{PbO}\:\left(\mathrm{red}\right) \\…