Question

If $A=\left[\begin{array}{ccc}3&1\\-1&2\end{array}\right]$, show that A² – 5A + 7I = O. Hence find A⁻¹.

Answer 1

Answer:

your photo question is diffrent and written question is diffrent plz answer what is real question

Answer 2

Answer:

here A square means multiply A with A.And I means identity matrix of order 2×2.Its very easy hope you can solve it easily.