Question

( begin{aligned} rightarrow & A=left[begin{array}{ll}3 & 1 -1 & 2end{array}right] A^{2} &=left[begin{array}{ccc}3 & 1 & 2 -1 & 2 & 5 & -1 & 2end{array}right] &=left[begin{array}{cc}8 & 5 5 & 3end{array}right] end{aligned} )

# , then A² = ILLUSTRATION-2 If A [KCET 1994; EAMCET 2-5 3| (0) [8.57 2-5 3 (0) L-5 -3 Te 17

Solution