1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+2
-0

The value of (1 + i)$$^5$$ (1 $$-$$ i)$$^7$$ is

A
$$-$$64
B
$$-$$64 i
C
64 i
D
64
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+2
-0

If $\omega$ is a complex cube root of unity and $A=\left[\begin{array}{ccc}\omega & 0 & 0 \\ 0 & \omega^2 & 0 \\ 0 & 0 & 1\end{array}\right]$ then $A^{-1}=\ldots$

A
$\left[\begin{array}{ccc}\omega^2 & 0 & 0 \\ 0 & \omega & 0 \\ 0 & 0 & 1\end{array}\right]$
B
$\left[\begin{array}{lll}1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1\end{array}\right]$
C
$\left[\begin{array}{ccc}1 & 0 & 0 \\ 0 & \omega^2 & 0 \\ 0 & 0 & \omega\end{array}\right]$
D
$\left[\begin{array}{ccc}0 & 0 & \omega \\ 0 & \omega^2 & 0 \\ 1 & 0 & 0\end{array}\right]$
MHT CET Subjects
EXAM MAP