यदि A= [ ll a & b c & d ] तो A^2 बराबर होगा : - Vidyadip

MCQ

यदि $A=\left[\begin{array}{ll}a & b \\ c & d\end{array}\right]$ तो $A^2$ बराबर होगा :

A
$\left[\begin{array}{ll}a^2 & b^2 \\ c^2 & d^2\end{array}\right]$
✓
$\left[\begin{array}{ll}a^3 & b^3 \\ c^3 & d^3\end{array}\right]$
C
$\left[\begin{array}{ll}b^2+b c & a b+b d \\ a c+d c & d c+d^2\end{array}\right]$
D
कोई नहीं (None)

✓

Answer

Correct option: B.

$\left[\begin{array}{ll}a^3 & b^3 \\ c^3 & d^3\end{array}\right]$

(B)

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