1. Tardigrade
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  4. l=(( cot 2 x ⋅ cos 2 x/ cot 2 x- cos 2 x))2 and m=a log √2[2 cos (y/2)], at y=4 π, then l2+m2 is equal to -

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Q. $l=\left(\frac{\cot ^2 x \cdot \cos ^2 x}{\cot ^2 x-\cos ^2 x}\right)^2$ and $m=a^{\log } \sqrt{2}\left[2 \cos \frac{y}{2}\right]$, at $y=4 \pi$, then $l^2+m^2$ is equal to -

Trigonometric Functions

Solution:

Correct answer is (c) 17