# MTH105 Questions and Solutions : For what value of k would the matrix $\begin{bmatrix}2k+1&5\\4&6\end{bmatrix}$ be singular?

For what value of k would the matrix $\begin{bmatrix}2k+1&5\\4&6\end{bmatrix}$ be singular?
a) 2
b) -3
c) -1
d) 22

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