Calculus Examples

$y = 3 e^{2 x} \arcsin (x)$

Step 1

Since $3$ is constant with respect to $x$ , the derivative of $3 e^{2 x} \arcsin (x)$ with respect to $x$ is $3 \frac{d}{d x} [e^{2 x} \arcsin (x)]$ .

$3 \frac{d}{d x} [e^{2 x} \arcsin (x)]$

Step 2

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 $f (x) = e^{2 x}$ and $g (x) = \arcsin (x)$ .

$3 (e^{2 x} \frac{d}{d x} [\arcsin (x)] + \arcsin (x) \frac{d}{d x} [e^{2 x}])$

Step 3

The derivative of $\arcsin (x)$ with respect to $x$ is $\frac{1}{\sqrt{1 - x^{2}}}$ .

$3 (e^{2 x} \frac{1}{\sqrt{1 - x^{2}}} + \arcsin (x) \frac{d}{d x} [e^{2 x}])$

Step 4

Combine $e^{2 x}$ and $\frac{1}{\sqrt{1 - x^{2}}}$ .

$3 (\frac{e^{2 x}}{\sqrt{1 - x^{2}}} + \arcsin (x) \frac{d}{d x} [e^{2 x}])$

Step 5

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = e^{x}$ and $g (x) = 2 x$ .

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Step 5.1

To apply the Chain Rule, set $u$ as $2 x$ .

$3 (\frac{e^{2 x}}{\sqrt{1 - x^{2}}} + \arcsin (x) (\frac{d}{d u} [e^{u}] \frac{d}{d x} [2 x]))$

Step 5.2

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

$3 (\frac{e^{2 x}}{\sqrt{1 - x^{2}}} + \arcsin (x) (e^{u} \frac{d}{d x} [2 x]))$

Step 5.3

Replace all occurrences of $u$ with $2 x$ .

$3 (\frac{e^{2 x}}{\sqrt{1 - x^{2}}} + \arcsin (x) (e^{2 x} \frac{d}{d x} [2 x]))$

Step 6

Differentiate.

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Step 6.1

Since $2$ is constant with respect to $x$ , the derivative of $2 x$ with respect to $x$ is $2 \frac{d}{d x} [x]$ .

$3 (\frac{e^{2 x}}{\sqrt{1 - x^{2}}} + \arcsin (x) (e^{2 x} (2 \frac{d}{d x} [x])))$

Step 6.2

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

$3 (\frac{e^{2 x}}{\sqrt{1 - x^{2}}} + \arcsin (x) (e^{2 x} (2 \cdot 1)))$

Step 6.3

Simplify the expression.

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Step 6.3.1

Multiply $2$ by $1$ .

$3 (\frac{e^{2 x}}{\sqrt{1 - x^{2}}} + \arcsin (x) (e^{2 x} \cdot 2))$

Step 6.3.2

Move $2$ to the left of $e^{2 x}$ .

$3 (\frac{e^{2 x}}{\sqrt{1 - x^{2}}} + \arcsin (x) (2 \cdot e^{2 x}))$

Step 7

Simplify.

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Step 7.1

Apply the distributive property.

$3 \frac{e^{2 x}}{\sqrt{1 - x^{2}}} + 3 (\arcsin (x) (2 e^{2 x}))$

Step 7.2

Combine terms.

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Step 7.2.1

Combine $3$ and $\frac{e^{2 x}}{\sqrt{1 - x^{2}}}$ .

$\frac{3 e^{2 x}}{\sqrt{1 - x^{2}}} + 3 (\arcsin (x) (2 e^{2 x}))$

Step 7.2.2

Multiply $2$ by $3$ .

$\frac{3 e^{2 x}}{\sqrt{1 - x^{2}}} + 6 \arcsin (x) e^{2 x}$

Step 7.3

Reorder terms.

$6 e^{2 x} \arcsin (x) + \frac{3 e^{2 x}}{\sqrt{1 - x^{2}}}$