Question
सारणिक $\left|\begin{array}{cc}1 & \log _b a \\ \log _a b & 1\end{array}\right|=$

Answer

(B) $0$
$1-\log _b a \times \log _a b=1-\log _a a=1-1=0$
$\because\log _a a=1$
अतः सही विकल्प (B) है।

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