Find the Derivative – d/dx y=xtan(x)

$y = x \tan (x)$

Differentiate using the Product Rule which states that $\frac{d}{d x} [f (x) g (x)]$ is $f (x) \frac{d}{d x} [g (x)] + g (x) \frac{d}{d x} [f (x)]$ where $f (x) = x$ and $g (x) = \tan (x)$ .

$x \frac{d}{d x} [\tan (x)] + \tan (x) \frac{d}{d x} [x]$

The derivative of $\tan (x)$ with respect to $x$ is $\sec^{2} (x)$ .

$x \sec^{2} (x) + \tan (x) \frac{d}{d x} [x]$

Differentiate using the Power Rule.

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Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 1$ .

$x \sec^{2} (x) + \tan (x) \cdot 1$

Multiply $\tan (x)$ by $1$ .

$x \sec^{2} (x) + \tan (x)$

Find the Derivative – d/dx y=xtan(x)

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