If A,B,C are the angles of a non right angled triangle ABC. Then find the value of: `|[tanA,1,1],[1,tanB,1],[1,1,tanC]|`

Explanation

To find the value of the determinant

\[
D = \begin{vmatrix}
\tan A & 1 & 1 \\
1 & \tan B & 1 \\
1 & 1 & \tan C
\end{vmatrix}
...