Use the result of Exercise 74 to find A1 for eachmatrix.(a) A = [100030002](b) A =

Chapter 2, Problem 75

(choose chapter or problem)

Use the result of Exercise 74 to find \(A^{−1}\) for each matrix.

(a) \(A=\left[\begin{array}{rrr} -1 & 0 & 0 \\ 0 & 3 & 0 \\ 0 & 0 & 2 \end{array}\right] \)

(b) \(A=\left[\begin{array}{lll} \frac{1}{2} & 0 & 0 \\ 0 & \frac{1}{3} & 0 \\ 0 & 0 & \frac{1}{4} \end{array}\right] \)

Text Transcription:

A^-1

A = [_0^0^-1 _0^3^0 _2^0^0]

A = [_0^0^1/2 _0^1/3^0 _1/4^0^0]