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Question Number 84001 by Power last updated on 08/Mar/20 Commented by Power last updated on 08/Mar/20 $$\mathrm{prove}\:\mathrm{it}\:\mathrm{pls} \\ $$ Commented by Power last updated on…
Question Number 149116 by bramlexs22 last updated on 03/Aug/21 $$\:\mathrm{If}\:\mathrm{A}\:\mathrm{is}\:\mathrm{a}\:\mathrm{3}×\mathrm{3}\:\mathrm{matrix}\:\mathrm{where}\:\mathrm{det}\left(\mathrm{A}\right)=−\mathrm{2} \\ $$$$\mathrm{then}\:\mathrm{what}\:\mathrm{will}\:\mathrm{be}\:\mathrm{det}\left(\mathrm{3A}^{\mathrm{2}} \mathrm{A}^{−\mathrm{1}} \right)? \\ $$$$\mathrm{knowing}\:\mathrm{that}\:\mathrm{A}^{−\mathrm{1}} \:\mathrm{is}\:\mathrm{the}\:\mathrm{inverse} \\ $$$$\mathrm{of}\:\mathrm{A}\: \\ $$ Answered by EDWIN88 last…
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Question Number 148446 by puissant last updated on 28/Jul/21 $$\mathrm{Soit}\:\mathrm{a},\mathrm{b},\mathrm{c}\:\mathrm{et}\:\alpha\:\mathrm{4}\:\mathrm{nombres}\:\mathrm{rationnels} \\ $$$$\mathrm{telque}\:\sqrt[{\mathrm{3}}]{\alpha}\:\mathrm{est}\:\mathrm{irrationnel}.. \\ $$$$\mathrm{Demontrer}\:\mathrm{que}\:: \\ $$$$\left(\mathrm{a}\sqrt[{\mathrm{3}}]{\alpha}+\mathrm{b}\sqrt[{\mathrm{3}}]{\alpha}=\mathrm{c}\right)\:\Rightarrow\:\left(\mathrm{a}=\mathrm{b}=\mathrm{c}\right).. \\ $$ Commented by Olaf_Thorendsen last updated on 28/Jul/21…
Question Number 82101 by legocole last updated on 18/Feb/20 $${Make}\:\mathrm{2}\:\mathrm{3}×\mathrm{3}\:{matrices}\:{i}\:{and}\:{j} \\ $$$${such}\:{that} \\ $$$${i}^{\mathrm{2}} ={j} \\ $$$${j}^{\mathrm{2}} ={i} \\ $$$${ij}=−\mathrm{1} \\ $$ Commented by Kunal12588…
Question Number 81906 by ahmadshahhimat775@gmail.com last updated on 16/Feb/20 Commented by mr W last updated on 16/Feb/20 $$\left.{w}\left.{hat}'{s}\:{the}\:{difference}\:{between}\:\mathrm{2}\right)\:{and}\:\mathrm{4}\right)? \\ $$ Terms of Service Privacy Policy…
Question Number 146687 by gflood92 last updated on 14/Jul/21 $${E}\:=\:{MC}^{\mathrm{2}\:} \:\:\:\:\:\:\:\:\:\int{requency}\:=\:{E}/{M} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 80830 by jagoll last updated on 07/Feb/20 $${given}\:{A}\:{a}\:{square}\:{matrix}\:{non} \\ $$$${singular}\:{A}\neq\:{I}. \\ $$$${find}\:{A}\:{such}\:{that}\:{A}^{\mathrm{3}} \:=\:{I} \\ $$ Answered by ~blr237~ last updated on 07/Feb/20 $${M}={diag}\left(\mathrm{1},{j},\overset{−}…
Question Number 145101 by alcohol last updated on 02/Jul/21 Commented by alcohol last updated on 02/Jul/21 $${Correction}\:{please} \\ $$$${A}\:=\begin{pmatrix}{\mathrm{1}}&{\mathrm{1}}\\{\mathrm{3}}&{−\mathrm{1}}\end{pmatrix} \\ $$$${please}\:{help}\:{me}\:{solve}\:{it}\: \\ $$ Terms of…