Find $\frac{dy}{dx}$ of $y = \frac{\cot x}{\cos x}$.
University of Ilorin MTH102 2023 past question
- $\sec x(\cot x \tan x - \csc^2 x)$
- $\sec^2 x(\cot x \tan x + \csc^2 x)$
- $\sec x(\cot^2 x \tan x - \csc^2 x)$
- $\sec x(\cot x \tan x + \csc^2 x)$
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