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sec x =\frac{cos x}{2\left(1+ sen x\right)}+\frac{cos x}{2\left(1- sen x\right)}

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Derivative

$\frac{d}{dx}\left(\sec\left(x\right)\right)=\sec\left(x\right)\tan\left(x\right)$ See full solution

Integral

$\int\sec\left(x\right)dx=\ln\left(\sec\left(x\right)+\tan\left(x\right)\right)+C_0$ See full solution

Main Topic: Simplify Trigonometric Expressions

Simplification of trigonometric expressions consists of rewriting an expression with trigonometric functions in a simpler form. To perform this task, we usually use the most common trigonometric identities, and some algebra.

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