What is the derivative of $sec(x^2-4)$ ?

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Answer 1 · 2016-06-14T07:06:43

$f'(x)=2xsec(x^2-4)tan(x^2-4)$

to find derivative of $f(x)=sec(x^2-4)$ , we know that $d/(dx) secx=secxtanx$

Hence $f'(x)=sec(x^2-4)tan(x^2-4)xx2x$ or

$f'(x)=2xsec(x^2-4)tan(x^2-4)$

What is the derivative of sec(x^2-4)sec(x^2-4)?