For two matrices P={pmatrix} 3 & 4 \\ -1 & 2 ...

CBSE Class 12 Math 2022 Term I Solved Paper

Question : 20 of 50

Marks: +1, -0

For two matrices

P=\begin{pmatrix} 3 & 4 \\ -1 & 2 \\ 0 & 1 \end{pmatrix}

and

Q^T=\begin{pmatrix} -1 & 2 & 1 \\ 1 & 2 & 3 \end{pmatrix}

\text{bo} P - \text{bo} Q

Solution: 👈: Video Solution

Here,

Q = (Q^T)^T = \begin{pmatrix} -1 & 1 \\ 2 & 2 \\ 1 & 3 \end{pmatrix}

Now,

P - Q \; = \begin{pmatrix} 3 & 4 \\ -1 & 2 \\ 0 & 1 \end{pmatrix} - \begin{pmatrix} -1 & 1 \\ 2 & 2 \\ 1 & 3 \end{pmatrix}

\; = \begin{pmatrix} 4 & 3 \\ -3 & 0 \\ -1 & -2 \end{pmatrix}

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