Class 12 Matrices · Mcq Single Correct1 Marksmatrix_linear_combinations Class 12 Maths · Matrices · Mcq Single Correct #7 If A=\(\begin{bmatrix}3 & 4\\5 & 2\end{bmatrix}\) and 2A+B=O, find B. (A) \(\begin{bmatrix}6 & 8\\10 & 4\end{bmatrix}\)(B) \(\begin{bmatrix}-6 & -8\\-10 & -4\end{bmatrix}\)(C) \(\begin{bmatrix}5 & 8\\10 & 3\end{bmatrix}\)(D) \(\begin{bmatrix}-5 & -8\\-10 & -3\end{bmatrix}\)