MCQ
$
\left|\begin{array}{cc}
\sec 7^0+1 & \operatorname{cosec} 83^0 \\
\operatorname{cosec} 83^0 & \sec 7^0-1
\end{array}\right|=
$ ………
\left|\begin{array}{cc}
\sec 7^0+1 & \operatorname{cosec} 83^0 \\
\operatorname{cosec} 83^0 & \sec 7^0-1
\end{array}\right|=
$ ………
- A$\frac{1}{2}$
- B$0$
- C$-1$
- D1