The matrices \(\mathrm{P}=\left[\begin{array}{lll}u_1 & v_1 & w_1 \\ u_2 & v_2 &.... VIDEO
The matrices \(\mathrm{P}=\left[\begin{array}{lll}u_1 & v_1 & w_1 \\ u_2 & v_2 & w_2 \\ u_3 & v_3 & w_3\end{array}\right] ; \mathrm{Q}=\frac{1}{9}\left[\begin{array}{ccc}2 & 2 & 1 \\ 13 & -5 & m \\ -8 & 1 & 5\end{array}\right]\) are such that \(\mathrm{PQ}=\mathrm{I}\), an identity matrix. Solving the equation \(\left[\begin{array}{lll}u_1 & v_1 & w_1 \\ u_2 & v_2 & w_2 \\ u_3 & v_3 & w_3\end{array}\right]\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\left[\begin{array}{l}1 \\ 1 \\ 5\end{array}\right]\), the value of \(y\) comes out to be -3. Then the value of \(m\) is equal to 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live
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