Powers of Imaginary Unit i and Complex Numbers - Class XII
Casual Mode - Take your time!
1 / 44
Correct
0
Incorrect
0
Score
0%
Multiple Choice
Find the value of $\begin{vmatrix} 2+i & 2-i \ 1+i & 1-i \end{vmatrix}$ if $i^2=-1$.
- A complex quantity
- real quantity
- $0$
- cannot be determined