A First Course in Linear Algebra · Problem MISLE.C23

Matrices — Robert Beezer

Mathematics — Linear Algebra · matrix-inverse-2x2

Problem

If it exists, find the inverse of the

2 \times 2

matrix

A = \begin{bmatrix} 7 & 3 \\ 5 & 2 \end{bmatrix}

and check your answer. (See Theorem TTMI.)