Practicing Success
Practicing Success
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For which value of k, inverse does not exist for the matrix $\begin{bmatrix}1 & 2\\k & 6 \end{bmatrix}$ : |
0 3 6 2 |
3 |
The correct answer is Option (2) → 3 $\begin{bmatrix}1 & 2\\k & 6 \end{bmatrix}=A$ $|A|=6-2k$ for $A^{-1}$ to not exist $|A|=0⇒k=3$ |
