`h(x) = 1/x - 12sec(x)` Find the derivative of the trigonometric function.

Expert Answers
hkj1385 eNotes educator| Certified Educator

Note:- 1) If y = secx ; then dy/dx = sec(x)*tan(x)

2) If y = x^n ; where n = constant ; then dy/dx = n*x^(n-1)

Now, 

`y = 1/x - 12sec(x)`

`y' = dy/dx = -1/x^2 - 12sec(x)*tan(x)`

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