Category: Matrices and Determinants

Question Number 26264 by Karan last updated on 23/Dec/17 $$\frac{\mathrm{x}}{3}+2\mathrm{x}=14$$ Answered by Rasheed.Sindhi last updated on 23/Dec/17 $$\frac{\mathrm{x}}{3}+2\mathrm{x}=14$$$$\mathrm{x}+6\mathrm{x}=42\left[\mathrm{Multiplying}\mathrm{by}3\right]$$$$\mathrm{7x}=\mathrm{42} \…

Question Number 25623 by Sunilll last updated on 12/Dec/17 $$solveforAandBif2A+B\left[\begin{array}{c}63\\ 6-2\end{array}\right]$$$$and3A+2B\left[\begin{array}{c}10\\ 05\end{array}\right]$$ Answered by mrW1 last updated on 12/Dec/17 $$2A+B=C\dots \left(i\right)$$$$\mathrm{3}{A}+\mathrm{2}{B}={D}\:\:…\left({ii}\right) \…

Question Number 156248 by alcohol last updated on 09/Oct/21 Answered by physicstutes last updated on 09/Oct/21 $$e^{i\theta }=\cos \theta +i\sin \theta \dots \dots .\left(i\right)$$$$e^{-i\theta }=\cos \theta -i\sin \theta \dots ..\left(ii\right)$$$$\mathrm{equation}\left(i\right)\mathrm{and}\left(ii\right)\mathrm{are}\mathrm{the}\mathrm{polar}\mathrm{and}\mathrm{index}\left(\mathrm{euler}\right)\mathrm{form}$$$$\mathrm{of}\:\mathrm{a}\:\mathrm{general}\:\mathrm{complex}\:\mathrm{number}\:\mathrm{with}\:\mathrm{modulus}\:\mathrm{1}.…

Question Number 24152 by Joel577 last updated on 13/Nov/17 $$\mathrm{Let}\mathrm{matrice}A=\left(\begin{array}{cc}a& b\\ c& d\end{array}\right),\mathrm{and}{A}^T=A^{-1}$$$$\mathrm{Find}d-bc$$ Commented by 1kanika# last updated on 26/Nov/17 $$1$$…

Question Number 23358 by rish@bh last updated on 29/Oct/17 Terms of Service Privacy Policy Contact: info@tinkutara.com