MCQ
दिया है कि $\left[\begin{array}{lll}1 & x \end{array}\right]\left[\begin{array}{cc}4 & 0 \\ -2 & 0\end{array}\right]=0$ तो $x$ का मान है$-$
  • A
    $-4$
  • B
    $-2$
  • $2$
  • D
    $4$

Answer

Correct option: C.
$2$
$2$

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