Section 3.5 : Derivatives of Trig Functions
4. Differentiate \(f\left( x \right) = 2\cos \left( x \right) - 6\sec \left( x \right) + 3\) .
Show SolutionNot much to do here other than take the derivative.
\[f'\left( x \right) = - 2\sin \left( x \right) - 6\sec \left( x \right)\tan \left( x \right)\]