Evaluate i&-1 -1&i 1. 4 2. 3 3. 2 4. 0 - Vidyadip

Question

Evaluate $\begin{bmatrix}\text{i}&-1\\-1&\text{i}\end{bmatrix}$

4
3
2
0

✓

Answer

0

Solution:
Expanding along $\text{R}_1,$ we get.
$\triangle=\text{-i}(\text{i})-(-1)(-1)=-\text{i}^2-1=-(-1)-1=0.$

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