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CUET
-- Mathematics - Section B1
Inverse Trigonometric Functions
$\tan \left[\frac{1}{2} \cos ^{-1} \frac{4}{5}\right]=$
$\frac{1}{3}$
$\frac{1}{\sqrt{10}}$
$\frac{\sqrt{3}}{10}$
3
The correct answer is Option (1) - $\frac{1}{3}$