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-- Mathematics - Section B1
Determinants
The value of $\tan ^2\left(\sec ^{-1} 2\right)$ is :
5
3
4
6
$y=\tan ^2\left(\sec ^{-1} 2\right)$
we know that $\sec ^{-1} 2=\cos ^{-1} \frac{1}{2}=\frac{\pi}{3}$
So $y=\tan ^2\left(\frac{\pi}{3}\right)$
$y=(\sqrt{3})^2=3$