Question Number 10807 by Saham last updated on 25/Feb/17 Commented by ridwan balatif last updated on 26/Feb/17 $$\mathrm{19}.\mathrm{13}\:\:\epsilon=\mathrm{1}\left(\mathrm{because}\:\mathrm{like}\:\mathrm{act}\:\mathrm{blackbody}\right),\:\mathrm{A}=\mathrm{1cm}^{\mathrm{2}} =\mathrm{10}^{−\mathrm{4}} \mathrm{m}^{\mathrm{2}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\sigma\left(\mathrm{Boltzman}\:\mathrm{constant}\right)=\mathrm{5}.\mathrm{67}×\mathrm{10}^{−\mathrm{8}} \mathrm{Wm}^{−\mathrm{2}} \mathrm{K}^{−\mathrm{4}} ,\:\mathrm{T}=\mathrm{1727}^{\mathrm{o}}…
Question Number 76340 by Master last updated on 26/Dec/19 Commented by behi83417@gmail.com last updated on 26/Dec/19 $$\mathrm{x}=−\mathrm{1},\mathrm{0} \\ $$ Answered by behi83417@gmail.com last updated on…
Question Number 76341 by liki last updated on 26/Dec/19 Commented by liki last updated on 26/Dec/19 $$..\boldsymbol{{Help}}\:\boldsymbol{{me}}\:\boldsymbol{{qn}}\:\mathrm{1}\left(\boldsymbol{{b}}\right)\:\boldsymbol{{plz}}.. \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 141872 by mohammad17 last updated on 24/May/21 Commented by mohammad17 last updated on 24/May/21 $${help}\:{me}\:{sir}\:{please} \\ $$ Commented by mohammad17 last updated on…
Question Number 141868 by mnjuly1970 last updated on 24/May/21 $$\:\:\:\:\:\:\:\:\:\:\:\:……\mathscr{A}{dvanced}\:\:…..\mathscr{C}{alculus}…….. \\ $$$$\:\:\:\:\:\:\:\:\:…..\:\:\int_{\:\mathbb{R}} ^{\:} \frac{{e}^{−{x}^{\mathrm{2}} } }{\left(\mathrm{1}+{x}^{\mathrm{2}} \right)^{\mathrm{2}} }\:{dx}=? \\ $$$$\:\:\:\:\: \\ $$ Commented by mindispower…
Question Number 10795 by j.masanja06@gmail.com last updated on 25/Feb/17 $$\mathrm{by}\:\mathrm{use}\:\mathrm{sketching}\:\mathrm{determine}\:\mathrm{the}\:\mathrm{range} \\ $$$$\mathrm{or}\left(\mathrm{ranges}\right)\:\mathrm{of}\:\mathrm{the}\:\mathrm{value}\:\mathrm{x}\:\mathrm{can}\:\mathrm{take}\:\mathrm{for} \\ $$$$\mathrm{each}\:\mathrm{of}\:\mathrm{the}\:\mathrm{following}\:\mathrm{inqualities} \\ $$$$\left(\mathrm{i}\right)\:\mathrm{3x}^{\mathrm{2}} −\mathrm{19x}−\mathrm{6}\leqslant\mathrm{0} \\ $$$$\left(\mathrm{ii}\right)\mathrm{2x}^{\mathrm{2}} −\mathrm{5x}−\mathrm{3}\geqslant\mathrm{0} \\ $$ Commented by sandy_suhendra…
Question Number 10794 by j.masanja06@gmail.com last updated on 25/Feb/17 $$\mathrm{find}\:\mathrm{the}\:\mathrm{range}\:\mathrm{or}\left(\mathrm{ranges}\right)\:\mathrm{of}\:\mathrm{the}\:\mathrm{value} \\ $$$$\mathrm{x}\:\mathrm{can}\:\mathrm{take}\:\mathrm{for}\:\mathrm{x}+\mathrm{6}>\mid\mathrm{2x}+\mathrm{3}\mid \\ $$ Commented by sandy_suhendra last updated on 25/Feb/17 $$\mathrm{this}\:\mathrm{question}\:\mathrm{has}\:\mathrm{been}\:\mathrm{answered}\:\mathrm{by}\:\mathrm{mrW1} \\ $$$$\mathrm{and}\:\mathrm{lee}\:\left(\mathrm{look}\:\mathrm{for}\:\mathrm{question}\:\mathrm{no}\:\mathrm{10777}\right) \\…
Question Number 76328 by arkanmath7@gmail.com last updated on 26/Dec/19 Commented by arkanmath7@gmail.com last updated on 26/Dec/19 $${sol}.\:{plz} \\ $$ Commented by kaivan.ahmadi last updated on…
Question Number 10793 by j.masanja06@gmail.com last updated on 25/Feb/17 $$\mathrm{let}\:\:\mathrm{A}\:=\begin{vmatrix}{\mathrm{4}}&{\mathrm{4k}}&{\mathrm{k}}\\{\mathrm{0}}&{\mathrm{k}}&{\mathrm{4k}}\\{\mathrm{0}}&{\mathrm{0}}&{\mathrm{4}}\end{vmatrix}\:\mathrm{if}\:\mathrm{det}\left(\mathrm{A}^{\mathrm{2}} \right)=\mathrm{16} \\ $$$$\mathrm{then}\:\mid\mathrm{k}\mid\:\mathrm{is}? \\ $$ Answered by sandy_suhendra last updated on 25/Feb/17 $$\mathrm{det}\:\mathrm{A}=\mathrm{16k}+\mathrm{0}+\mathrm{0}−\left(\mathrm{0}+\mathrm{0}+\mathrm{0}\right)=\mathrm{16k} \\ $$$$\mathrm{det}\left(\mathrm{A}^{\mathrm{2}}…
Question Number 76326 by Master last updated on 26/Dec/19 Answered by benjo last updated on 26/Dec/19 $$\mathrm{using}\:\mathrm{determinan}\:\mathrm{Vandermon}\:\mathrm{de}\:\mathrm{method}\: \\ $$ Commented by Master last updated on…