The value of $\begin{vmatrix}2^x&1&6^x\\4^x&1&3^x\\2^x&1&6^x\end{vmatrix}$, where $x≠0$; is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 0
$\Delta = \begin{vmatrix} 2^x & 1 & 6^x \\ 4^x & 1 & 3^x \\ 2^x & 1 & 6^x \end{vmatrix}$
Since Row 1 = Row 3, determinant = 0.
$ \Delta = 0$