Matrix Algebra

Matrix operations, inverses, elementary and block matrices, and the Invertible Matrix Theorem.0/8 mastered

1 / 8

Let

M=\begin{pmatrix}A&0\\0&D\end{pmatrix}

4\times4

with

A=\begin{pmatrix}2&1\\0&2\end{pmatrix}

and

D=\begin{pmatrix}3&0\\0&4\end{pmatrix}

. What is the

(3,3)

entry of

M^{-1}

Your answer

#5086