Mastering The Quotient Rule For Secant Derivatives: Simple Step-By-Step Guide

What is the derivative of sec(x)?

sec(x)tan(x)

Using the quotient rule, we can find the derivative of sec(x) as follows:

Let y = sec(x)

Then, y = 1/cos(x)

Using the quotient rule, we have:

y’ = [(cos(x)(0)) – (1)(-sin(x))]/cos^2(x)

y’ = sin(x)/cos^2(x)

Simplifying further using trigonometric identities, we get:

y’ = sec(x) * tan(x)

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