MCQ
જો $A =\left[\begin{array}{cc}a & b \\ b & a\end{array}\right]$ અને $A ^2=\left[\begin{array}{ll} x & y \\ y & x \end{array}\right]$ તો $x =\ldots \ldots \ldots$, $y =\ldots \ldots \ldots, $
  • A
    $x =a^2+ b ^2, y =a^2- b ^2$
  • B
    $x =a^2+ b ^2, y =a b$
  • C
    $x =2 a b , y =a^2+ b ^2$
  • $x =a^2+ b ^2, y =2 a b$

Answer

Correct option: D.
$x =a^2+ b ^2, y =2 a b$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free