Question:medium

Inverse of \( \begin{bmatrix} 1 & 2 2 & 4 \end{bmatrix} \) ____.

Show Hint

A quick visual check: if one row (or column) is a multiple of another, the determinant is always zero. Here, the second row $[2, 4]$ is exactly double the first row $[1, 2]$.
Updated On: May 19, 2026
  • Exist
  • Does not exist
  • Unit matrix
  • None
Show Solution

The Correct Option is B

Solution and Explanation

Was this answer helpful?
0

Top Questions on Invertible Matrices

Questions Asked in OJEE exam