`f(x) = sec(x)` Find the second derivative of the function.

Textbook Question

Chapter 2, 2.3 - Problem 98 - Calculus of a Single Variable (10th Edition, Ron Larson).
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hkj1385 | (Level 1) Assistant Educator

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`f(x) = sec(x)`

`f'(x) = sec(x)tan(x)`

`f''(x) = sec(x)*sec^2(x) + tan(x)*sec(x)tan(x)`

`or, f''(x) = sec(x)[sec^2(x) + tan^2(x)]`

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