Question 23
If $\left( \begin{matrix} x+3 & x+2 \\ x+1 & x-1 \\\end{matrix} \right)$, evaluate x if $\left| P \right|=-10$
If $\left( \begin{matrix} x+3 & x+2 \\ x+1 & x-1 \\\end{matrix} \right)$, evaluate x if $\left| P \right|=-10$
If $Q=\left( \begin{matrix} 9 & -2 \\ -7 & 4 \\\end{matrix} \right),\text{then }\left| Q \right|\text{is}$
If $\left( \begin{matrix} -2 & 1 \\ 2 & 3 \\\end{matrix} \right)\left( \begin{matrix} p & q \\ r & s \\\end{matrix} \right)=\left( \begin{matrix} 1 & 0 \\ 0 & 1 \\\end{matrix} \right),$what is the value of r
Find the value of x and y respectively if $\left( \begin{matrix} 1 & 0 \\ -1 & -1 \\ 2 & 2 \\\end{matrix} \right)+\left( \begin{matrix} x & 1 \\ -1 & 0 \\ y & -2 \\\end{matrix} \right)=\left( \begin{matrix} -2 & 1 \\ -2 & -1 \\ -3 & 0 \\\end{matrix} \right)$
If f(x) = 3x – 2, P =$\left( \begin{matrix} 2 & 1 \\ -1 & 0 \\\end{matrix} \right)$and I is 2 × 2, identity matrix, evaluate f(p)
$\left( \begin{matrix} 3 & -2 \\ -7 & 5 \\\end{matrix} \right)+2\left( \begin{matrix} -2 & 4 \\ 3 & -1 \\\end{matrix} \right)$
Find p, q for which$\left( \begin{matrix} 2p & 8 \\ 3 & -5q \\\end{matrix} \right)\left( \begin{align} & 1 \\ & 2 \\\end{align} \right)=\left( \begin{align} & 24 \\ & -17 \\\end{align} \right)$
If $x=\left[ \begin{matrix} 1 & 0 & 1 \\ 2 & -1 & 0 \\ -1 & 0 & 1 \\\end{matrix} \right]$ and $y=\left[ \begin{matrix} -1 & 1 & 2 \\ 0 & -1 & -1 \\ 2 & -1 & -1 \\\end{matrix} \right]$find 2x – y
If M and N are two matrices defined by $M=\left( \begin{matrix} 1 & 3 & 2 \\ 4 & 5 & -1 \\ -3 & 2 & 0 \\\end{matrix} \right)$and$\left( \begin{matrix} 1 & -2 & 3 \\ 4 & -1 & 5 \\ 2 & -3 & -1 \\\end{matrix} \right)$,evaluate 2M – 3N
If $P=\left( \begin{matrix} 1 & 3 & 2 \\ 4 & 5 & -1 \\ -3 & 2 & 0 \\\end{matrix} \right)$find the determinant of matrix P