Calculus Examples

$f (x) = e^{x} - x^{6}$

By the Sum Rule, the derivative of $e^{x} - x^{6}$ with respect to $x$ is $\frac{d}{d x} [e^{x}] + \frac{d}{d x} [- x^{6}]$ .

$\frac{d}{d x} [e^{x}] + \frac{d}{d x} [- x^{6}]$

Differentiate using the Exponential Rule which states that $\frac{d}{d x} [a^{x}]$ is $a^{x} \ln (a)$ where $a$ = $e$ .

$e^{x} + \frac{d}{d x} [- x^{6}]$

Evaluate $\frac{d}{d x} [- x^{6}]$ .

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Since $- 1$ is constant with respect to $x$ , the derivative of $- x^{6}$ with respect to $x$ is $- \frac{d}{d x} [x^{6}]$ .

$e^{x} - \frac{d}{d x} [x^{6}]$

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 6$ .

$e^{x} - (6 x^{5})$

Multiply $6$ by $- 1$ .

$e^{x} - 6 x^{5}$

Reorder terms.

$- 6 x^{5} + e^{x}$