# Derivative of tanx formula

## Formula

$\large \dfrac{d}{dx} \, \tan{x} = \sec^2{x}$

It is read as the derivative (or) differentiation of tan of angle $x$ with respect to $x$ is equal to square of secant of angle $x$.

### Proof

Learn how to derive differentiation of $\tan{x}$ formula in calculus.

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