Calculus Examples

$y = \sin (\tan (\sqrt{1 + x^{3}}))$

Step 1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{1 + x^{3}}$ as ${(1 + x^{3})}^{\frac{1}{2}}$ .

$\frac{d}{d x} [\sin (\tan ({(1 + x^{3})}^{\frac{1}{2}}))]$

Step 2

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = \sin (x)$ and $g (x) = \tan ({(1 + x^{3})}^{\frac{1}{2}})$ .

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Step 2.1

To apply the Chain Rule, set $u_{1}$ as $\tan ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\frac{d}{d u_{1}} [\sin (u_{1})] \frac{d}{d x} [\tan ({(1 + x^{3})}^{\frac{1}{2}})]$

Step 2.2

The derivative of $\sin (u_{1})$ with respect to $u_{1}$ is $\cos (u_{1})$ .

$\cos (u_{1}) \frac{d}{d x} [\tan ({(1 + x^{3})}^{\frac{1}{2}})]$

Step 2.3

Replace all occurrences of $u_{1}$ with $\tan ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \frac{d}{d x} [\tan ({(1 + x^{3})}^{\frac{1}{2}})]$

Step 3

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = \tan (x)$ and $g (x) = {(1 + x^{3})}^{\frac{1}{2}}$ .

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Step 3.1

To apply the Chain Rule, set $u_{2}$ as ${(1 + x^{3})}^{\frac{1}{2}}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (\frac{d}{d u_{2}} [\tan (u_{2})] \frac{d}{d x} [{(1 + x^{3})}^{\frac{1}{2}}])$

Step 3.2

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

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (\sec^{2} (u_{2}) \frac{d}{d x} [{(1 + x^{3})}^{\frac{1}{2}}])$

Step 3.3

Replace all occurrences of $u_{2}$ with ${(1 + x^{3})}^{\frac{1}{2}}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (\sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) \frac{d}{d x} [{(1 + x^{3})}^{\frac{1}{2}}])$

Step 4

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = x^{\frac{1}{2}}$ and $g (x) = 1 + x^{3}$ .

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Step 4.1

To apply the Chain Rule, set $u_{3}$ as $1 + x^{3}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{d}{d u_{3}} [{u_{3}}^{\frac{1}{2}}] \frac{d}{d x} [1 + x^{3}])$

Step 4.2

Differentiate using the Power Rule which states that $\frac{d}{d u_{3}} [{u_{3}}^{n}]$ is $n {u_{3}}^{n - 1}$ where $n = \frac{1}{2}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2} {u_{3}}^{\frac{1}{2} - 1} \frac{d}{d x} [1 + x^{3}])$

Step 4.3

Replace all occurrences of $u_{3}$ with $1 + x^{3}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2} {(1 + x^{3})}^{\frac{1}{2} - 1} \frac{d}{d x} [1 + x^{3}])$

Step 5

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2} {(1 + x^{3})}^{\frac{1}{2} - 1 \cdot \frac{2}{2}} \frac{d}{d x} [1 + x^{3}])$

Step 6

Combine $- 1$ and $\frac{2}{2}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2} {(1 + x^{3})}^{\frac{1}{2} + \frac{- 1 \cdot 2}{2}} \frac{d}{d x} [1 + x^{3}])$

Step 7

Combine the numerators over the common denominator.

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2} {(1 + x^{3})}^{\frac{1 - 1 \cdot 2}{2}} \frac{d}{d x} [1 + x^{3}])$

Step 8

Simplify the numerator.

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Step 8.1

Multiply $- 1$ by $2$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2} {(1 + x^{3})}^{\frac{1 - 2}{2}} \frac{d}{d x} [1 + x^{3}])$

Step 8.2

Subtract $2$ from $1$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2} {(1 + x^{3})}^{\frac{- 1}{2}} \frac{d}{d x} [1 + x^{3}])$

Step 9

Combine fractions.

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Step 9.1

Move the negative in front of the fraction.

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2} {(1 + x^{3})}^{- \frac{1}{2}} \frac{d}{d x} [1 + x^{3}])$

Step 9.2

Combine $\frac{1}{2}$ and ${(1 + x^{3})}^{- \frac{1}{2}}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{{(1 + x^{3})}^{- \frac{1}{2}}}{2} \frac{d}{d x} [1 + x^{3}])$

Step 9.3

Move ${(1 + x^{3})}^{- \frac{1}{2}}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (\frac{1}{2 {(1 + x^{3})}^{\frac{1}{2}}} \frac{d}{d x} [1 + x^{3}])$

Step 9.4

Combine $\frac{1}{2 {(1 + x^{3})}^{\frac{1}{2}}}$ and $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}} \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) \frac{d}{d x} [1 + x^{3}]$

Step 9.5

Combine $\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$ and $\sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} \frac{d}{d x} [1 + x^{3}]$

Step 10

By the Sum Rule, the derivative of $1 + x^{3}$ with respect to $x$ is $\frac{d}{d x} [1] + \frac{d}{d x} [x^{3}]$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} (\frac{d}{d x} [1] + \frac{d}{d x} [x^{3}])$

Step 11

Since $1$ is constant with respect to $x$ , the derivative of $1$ with respect to $x$ is $0$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} (0 + \frac{d}{d x} [x^{3}])$

Step 12

Add $0$ and $\frac{d}{d x} [x^{3}]$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} \frac{d}{d x} [x^{3}]$

Step 13

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} (3 x^{2})$

Step 14

Combine fractions.

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Step 14.1

Combine $3$ and $\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$ .

$\frac{3 (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}} x^{2}$

Step 14.2

Combine $\frac{3 (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$ and $x^{2}$ .

$\frac{3 (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})) x^{2}}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15

Simplify.

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Step 15.1

Reorder terms.

$\frac{3 x^{2} \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}) \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.2

Simplify the numerator.

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Step 15.2.1

Rewrite $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ in terms of sines and cosines.

$\frac{3 x^{2} {(\frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})})}^{2} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.2.2

Apply the product rule to $\frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})}$ .

$\frac{3 x^{2} \frac{1^{2}}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.2.3

One to any power is one.

$\frac{3 x^{2} \frac{1}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.2.4

Combine exponents.

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Step 15.2.4.1

Combine $3$ and $\frac{1}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})}$ .

$\frac{x^{2} \frac{3}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.2.4.2

Combine $x^{2}$ and $\frac{3}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})}$ .

$\frac{\frac{x^{2} \cdot 3}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.2.4.3

Combine $\frac{x^{2} \cdot 3}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})}$ and $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ .

$\frac{\frac{x^{2} \cdot 3 \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})}}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.2.5

Move $3$ to the left of $x^{2}$ .

$\frac{\frac{3 x^{2} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})}}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.3

Multiply the numerator by the reciprocal of the denominator.

$\frac{3 x^{2} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})} \cdot \frac{1}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.4

Combine.

$\frac{3 x^{2} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \cdot 1}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (2 {(1 + x^{3})}^{\frac{1}{2}})}$

Step 15.5

Multiply $3$ by $1$ .

$\frac{3 x^{2} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}}) (2 {(1 + x^{3})}^{\frac{1}{2}})}$

Step 15.6

Move $2$ to the left of $\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\frac{3 x^{2} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 \cdot \cos^{2} ({(1 + x^{3})}^{\frac{1}{2}}) {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.7

Factor $\cos ({(1 + x^{3})}^{\frac{1}{2}})$ out of $\cos^{2} ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\frac{3 x^{2} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{2 (\cos ({(1 + x^{3})}^{\frac{1}{2}}) \cos ({(1 + x^{3})}^{\frac{1}{2}})) {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.8

Separate fractions.

$\frac{3 x^{2}}{2 (\cos ({(1 + x^{3})}^{\frac{1}{2}})) {(1 + x^{3})}^{\frac{1}{2}}} \cdot \frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{\cos ({(1 + x^{3})}^{\frac{1}{2}})}$

Step 15.9

Rewrite $\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{\cos ({(1 + x^{3})}^{\frac{1}{2}})}$ as a product.

$\frac{3 x^{2}}{2 (\cos ({(1 + x^{3})}^{\frac{1}{2}})) {(1 + x^{3})}^{\frac{1}{2}}} (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})})$

Step 15.10

Write $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ as a fraction with denominator $1$ .

$\frac{3 x^{2}}{2 (\cos ({(1 + x^{3})}^{\frac{1}{2}})) {(1 + x^{3})}^{\frac{1}{2}}} (\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{1} \cdot \frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})})$

Step 15.11

Simplify.

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Step 15.11.1

Divide $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ by $1$ .

$\frac{3 x^{2}}{2 (\cos ({(1 + x^{3})}^{\frac{1}{2}})) {(1 + x^{3})}^{\frac{1}{2}}} (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})})$

Step 15.11.2

Convert from $\frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})}$ to $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\frac{3 x^{2}}{2 (\cos ({(1 + x^{3})}^{\frac{1}{2}})) {(1 + x^{3})}^{\frac{1}{2}}} (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec ({(1 + x^{3})}^{\frac{1}{2}}))$

Step 15.12

Multiply $\frac{3 x^{2}}{2 \cos ({(1 + x^{3})}^{\frac{1}{2}}) {(1 + x^{3})}^{\frac{1}{2}}} (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec ({(1 + x^{3})}^{\frac{1}{2}}))$ .

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Step 15.12.1

Combine $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ and $\frac{3 x^{2}}{2 \cos ({(1 + x^{3})}^{\frac{1}{2}}) {(1 + x^{3})}^{\frac{1}{2}}}$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2})}{2 \cos ({(1 + x^{3})}^{\frac{1}{2}}) {(1 + x^{3})}^{\frac{1}{2}}} \sec ({(1 + x^{3})}^{\frac{1}{2}})$

Step 15.12.2

Combine $\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2})}{2 \cos ({(1 + x^{3})}^{\frac{1}{2}}) {(1 + x^{3})}^{\frac{1}{2}}}$ and $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 \cos ({(1 + x^{3})}^{\frac{1}{2}}) {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.13

Separate fractions.

$\frac{(3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} \cdot \frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{\cos ({(1 + x^{3})}^{\frac{1}{2}})}$

Step 15.14

Rewrite $\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{\cos ({(1 + x^{3})}^{\frac{1}{2}})}$ as a product.

$\frac{(3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})})$

Step 15.15

Write $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ as a fraction with denominator $1$ .

$\frac{(3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} (\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))}{1} \cdot \frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})})$

Step 15.16

Simplify.

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Step 15.16.1

Divide $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ by $1$ .

$\frac{(3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})})$

Step 15.16.2

Convert from $\frac{1}{\cos ({(1 + x^{3})}^{\frac{1}{2}})}$ to $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\frac{(3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec ({(1 + x^{3})}^{\frac{1}{2}}))$

Step 15.17

Multiply $\frac{(3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}} (\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec ({(1 + x^{3})}^{\frac{1}{2}}))$ .

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Step 15.17.1

Combine $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ and $\frac{(3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) ((3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}} \sec ({(1 + x^{3})}^{\frac{1}{2}})$

Step 15.17.2

Combine $\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) ((3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$ and $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) ((3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.17.3

Raise $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ to the power of $1$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2} (\sec^{1} ({(1 + x^{3})}^{\frac{1}{2}}) \sec ({(1 + x^{3})}^{\frac{1}{2}})))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.17.4

Raise $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ to the power of $1$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2} (\sec^{1} ({(1 + x^{3})}^{\frac{1}{2}}) \sec^{1} ({(1 + x^{3})}^{\frac{1}{2}})))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.17.5

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2} {\sec ({(1 + x^{3})}^{\frac{1}{2}})}^{1 + 1})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.17.6

Add $1$ and $1$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2} \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.18

Simplify the numerator.

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Step 15.18.1

Rewrite.

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) ((3 x^{2}) \sec ({(1 + x^{3})}^{\frac{1}{2}})) \sec ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.18.2

Raise $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ to the power of $1$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2} (\sec^{1} ({(1 + x^{3})}^{\frac{1}{2}}) \sec ({(1 + x^{3})}^{\frac{1}{2}})))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.18.3

Raise $\sec ({(1 + x^{3})}^{\frac{1}{2}})$ to the power of $1$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2} (\sec^{1} ({(1 + x^{3})}^{\frac{1}{2}}) \sec^{1} ({(1 + x^{3})}^{\frac{1}{2}})))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.18.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2} {\sec ({(1 + x^{3})}^{\frac{1}{2}})}^{1 + 1})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.18.5

Add $1$ and $1$ .

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) (3 x^{2} \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}}))}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.18.6

Remove unnecessary parentheses.

$\frac{\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \cdot 3 x^{2} \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.19

Move $3$ to the left of $\cos (\tan ({(1 + x^{3})}^{\frac{1}{2}}))$ .

$\frac{3 \cdot \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) x^{2} \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$

Step 15.20

Reorder factors in $\frac{3 \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) x^{2} \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$ .

$\frac{3 x^{2} \cos (\tan ({(1 + x^{3})}^{\frac{1}{2}})) \sec^{2} ({(1 + x^{3})}^{\frac{1}{2}})}{2 {(1 + x^{3})}^{\frac{1}{2}}}$