1.

Which among the below matrices has the inverse A-1=\(\begin{bmatrix}1&-\frac{5}{8}\\0&\frac{1}{8}\end{bmatrix}\)

A. \(\begin{bmatrix}1&5\\0&8\end{bmatrix}\)
B. \(\begin{bmatrix}1&5\\-1&8\end{bmatrix}\)
C. \(\begin{bmatrix}1&5\\0&16\end{bmatrix}\)
D. \(\begin{bmatrix}1&8\\0&8\end{bmatrix}\)
Answer» B.


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