Calculus Examples

$N (s) = \frac{83 s}{19 + 19 {(\frac{s}{23})}^{2}}$

Step 1

Since $83$ is constant with respect to $s$ , the derivative of $\frac{83 s}{19 + 19 {(\frac{s}{23})}^{2}}$ with respect to $s$ is $83 \frac{d}{d s} [\frac{s}{19 + 19 {(\frac{s}{23})}^{2}}]$ .

$83 \frac{d}{d s} [\frac{s}{19 + 19 {(\frac{s}{23})}^{2}}]$

Step 2

Differentiate using the Quotient Rule which states that $\frac{d}{d s} [\frac{f (s)}{g (s)}]$ is $\frac{g (s) \frac{d}{d s} [f (s)] - f (s) \frac{d}{d s} [g (s)]}{{g (s)}^{2}}$ where $f (s) = s$ and $g (s) = 19 + 19 {(\frac{s}{23})}^{2}$ .

$83 \frac{(19 + 19 {(\frac{s}{23})}^{2}) \frac{d}{d s} [s] - s \frac{d}{d s} [19 + 19 {(\frac{s}{23})}^{2}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 3

Differentiate.

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Step 3.1

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

$83 \frac{(19 + 19 {(\frac{s}{23})}^{2}) \cdot 1 - s \frac{d}{d s} [19 + 19 {(\frac{s}{23})}^{2}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 3.2

Multiply $19 + 19 {(\frac{s}{23})}^{2}$ by $1$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - s \frac{d}{d s} [19 + 19 {(\frac{s}{23})}^{2}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 3.3

By the Sum Rule, the derivative of $19 + 19 {(\frac{s}{23})}^{2}$ with respect to $s$ is $\frac{d}{d s} [19] + \frac{d}{d s} [19 {(\frac{s}{23})}^{2}]$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - s (\frac{d}{d s} [19] + \frac{d}{d s} [19 {(\frac{s}{23})}^{2}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 3.4

Since $19$ is constant with respect to $s$ , the derivative of $19$ with respect to $s$ is $0$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - s (0 + \frac{d}{d s} [19 {(\frac{s}{23})}^{2}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 3.5

Add $0$ and $\frac{d}{d s} [19 {(\frac{s}{23})}^{2}]$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - s \frac{d}{d s} [19 {(\frac{s}{23})}^{2}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 3.6

Since $19$ is constant with respect to $s$ , the derivative of $19 {(\frac{s}{23})}^{2}$ with respect to $s$ is $19 \frac{d}{d s} [{(\frac{s}{23})}^{2}]$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - s (19 \frac{d}{d s} [{(\frac{s}{23})}^{2}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 3.7

Multiply $19$ by $- 1$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - 19 s \frac{d}{d s} [{(\frac{s}{23})}^{2}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 4

Differentiate using the chain rule, which states that $\frac{d}{d s} [f (g (s))]$ is $f' (g (s)) g' (s)$ where $f (s) = s^{2}$ and $g (s) = \frac{s}{23}$ .

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Step 4.1

To apply the Chain Rule, set $u$ as $\frac{s}{23}$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - 19 s (\frac{d}{d u} [u^{2}] \frac{d}{d s} [\frac{s}{23}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 4.2

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

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - 19 s (2 u \frac{d}{d s} [\frac{s}{23}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 4.3

Replace all occurrences of $u$ with $\frac{s}{23}$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - 19 s (2 \frac{s}{23} \frac{d}{d s} [\frac{s}{23}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 5

Combine fractions.

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Step 5.1

Combine $2$ and $\frac{s}{23}$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - 19 s (\frac{2 s}{23} \frac{d}{d s} [\frac{s}{23}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 5.2

Combine $- 19$ and $\frac{2 s}{23}$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} + s (\frac{- 19 (2 s)}{23} \frac{d}{d s} [\frac{s}{23}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 5.3

Multiply $2$ by $- 19$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} + s (\frac{- 38 s}{23} \frac{d}{d s} [\frac{s}{23}])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 5.4

Combine $\frac{- 38 s}{23}$ and $s$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} + \frac{- 38 s \cdot s}{23} \frac{d}{d s} [\frac{s}{23}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 6

Raise $s$ to the power of $1$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} + \frac{- 38 (s^{1} s)}{23} \frac{d}{d s} [\frac{s}{23}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 7

Raise $s$ to the power of $1$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} + \frac{- 38 (s^{1} s^{1})}{23} \frac{d}{d s} [\frac{s}{23}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 8

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

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} + \frac{- 38 s^{1 + 1}}{23} \frac{d}{d s} [\frac{s}{23}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 9

Simplify the expression.

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Step 9.1

Add $1$ and $1$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} + \frac{- 38 s^{2}}{23} \frac{d}{d s} [\frac{s}{23}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 9.2

Move the negative in front of the fraction.

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - \frac{38 s^{2}}{23} \frac{d}{d s} [\frac{s}{23}]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 10

Since $\frac{1}{23}$ is constant with respect to $s$ , the derivative of $\frac{s}{23}$ with respect to $s$ is $\frac{1}{23} \frac{d}{d s} [s]$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - \frac{38 s^{2}}{23} (\frac{1}{23} \frac{d}{d s} [s])}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 11

Combine fractions.

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Step 11.1

Multiply $\frac{1}{23}$ by $\frac{38 s^{2}}{23}$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - \frac{38 s^{2}}{23 \cdot 23} \frac{d}{d s} [s]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 11.2

Multiply $23$ by $23$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - \frac{38 s^{2}}{529} \frac{d}{d s} [s]}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 12

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

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - \frac{38 s^{2}}{529} \cdot 1}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 13

Combine fractions.

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Step 13.1

Multiply $- 1$ by $1$ .

$83 \frac{19 + 19 {(\frac{s}{23})}^{2} - \frac{38 s^{2}}{529}}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 13.2

Combine $83$ and $\frac{19 + 19 {(\frac{s}{23})}^{2} - \frac{38 s^{2}}{529}}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$ .

$\frac{83 (19 + 19 {(\frac{s}{23})}^{2} - \frac{38 s^{2}}{529})}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 14

Simplify.

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Step 14.1

Apply the product rule to $\frac{s}{23}$ .

$\frac{83 (19 + 19 \frac{s^{2}}{23^{2}} - \frac{38 s^{2}}{529})}{{(19 + 19 {(\frac{s}{23})}^{2})}^{2}}$

Step 14.2

Apply the product rule to $\frac{s}{23}$ .

$\frac{83 (19 + 19 \frac{s^{2}}{23^{2}} - \frac{38 s^{2}}{529})}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.3

Apply the distributive property.

$\frac{83 \cdot 19 + 83 (19 \frac{s^{2}}{23^{2}}) + 83 (- \frac{38 s^{2}}{529})}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4

Simplify the numerator.

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Step 14.4.1

Simplify each term.

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Step 14.4.1.1

Multiply $83$ by $19$ .

$\frac{1577 + 83 (19 \frac{s^{2}}{23^{2}}) + 83 (- \frac{38 s^{2}}{529})}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.1.2

Raise $23$ to the power of $2$ .

$\frac{1577 + 83 (19 \frac{s^{2}}{529}) + 83 (- \frac{38 s^{2}}{529})}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.1.3

Combine $19$ and $\frac{s^{2}}{529}$ .

$\frac{1577 + 83 \frac{19 s^{2}}{529} + 83 (- \frac{38 s^{2}}{529})}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.1.4

Multiply $83 \frac{19 s^{2}}{529}$ .

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Step 14.4.1.4.1

Combine $83$ and $\frac{19 s^{2}}{529}$ .

$\frac{1577 + \frac{83 (19 s^{2})}{529} + 83 (- \frac{38 s^{2}}{529})}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.1.4.2

Multiply $19$ by $83$ .

$\frac{1577 + \frac{1577 s^{2}}{529} + 83 (- \frac{38 s^{2}}{529})}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.1.5

Multiply $83 (- \frac{38 s^{2}}{529})$ .

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Step 14.4.1.5.1

Multiply $- 1$ by $83$ .

$\frac{1577 + \frac{1577 s^{2}}{529} - 83 \frac{38 s^{2}}{529}}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.1.5.2

Combine $- 83$ and $\frac{38 s^{2}}{529}$ .

$\frac{1577 + \frac{1577 s^{2}}{529} + \frac{- 83 (38 s^{2})}{529}}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.1.5.3

Multiply $38$ by $- 83$ .

$\frac{1577 + \frac{1577 s^{2}}{529} + \frac{- 3154 s^{2}}{529}}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.1.6

Move the negative in front of the fraction.

$\frac{1577 + \frac{1577 s^{2}}{529} - \frac{3154 s^{2}}{529}}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.2

Combine the numerators over the common denominator.

$\frac{1577 + \frac{1577 s^{2} - 3154 s^{2}}{529}}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.3

Subtract $3154 s^{2}$ from $1577 s^{2}$ .

$\frac{1577 + \frac{- 1577 s^{2}}{529}}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.4.4

Move the negative in front of the fraction.

$\frac{1577 - \frac{1577 s^{2}}{529}}{{(19 + 19 \frac{s^{2}}{23^{2}})}^{2}}$

Step 14.5

Combine terms.

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Step 14.5.1

Raise $23$ to the power of $2$ .

$\frac{1577 - \frac{1577 s^{2}}{529}}{{(19 + 19 \frac{s^{2}}{529})}^{2}}$

Step 14.5.2

Combine $19$ and $\frac{s^{2}}{529}$ .

$\frac{1577 - \frac{1577 s^{2}}{529}}{{(19 + \frac{19 s^{2}}{529})}^{2}}$

Step 14.6

Reorder terms.

$\frac{- \frac{1577 s^{2}}{529} + 1577}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7

Simplify the numerator.

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Step 14.7.1

Factor $1577$ out of $- \frac{1577 s^{2}}{529} + 1577$ .

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Step 14.7.1.1

Factor $1577$ out of $- \frac{1577 s^{2}}{529}$ .

$\frac{1577 (- \frac{s^{2}}{529}) + 1577}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.1.2

Factor $1577$ out of $1577$ .

$\frac{1577 (- \frac{s^{2}}{529}) + 1577 (1)}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.1.3

Factor $1577$ out of $1577 (- \frac{s^{2}}{529}) + 1577 (1)$ .

$\frac{1577 (- \frac{s^{2}}{529} + 1)}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.2

Rewrite $1$ as $1^{2}$ .

$\frac{1577 (- \frac{s^{2}}{529} + 1^{2})}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.3

Rewrite $\frac{s^{2}}{529}$ as ${(\frac{s}{23})}^{2}$ .

$\frac{1577 (- {(\frac{s}{23})}^{2} + 1^{2})}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.4

Reorder $- {(\frac{s}{23})}^{2}$ and $1^{2}$ .

$\frac{1577 (1^{2} - {(\frac{s}{23})}^{2})}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.5

Since both terms are perfect squares, factor using the difference of squares formula, $a^{2} - b^{2} = (a + b) (a - b)$ where $a = 1$ and $b = \frac{s}{23}$ .

$\frac{1577 (1 + \frac{s}{23}) (1 - \frac{s}{23})}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.6

Write $1$ as a fraction with a common denominator.

$\frac{1577 (\frac{23}{23} + \frac{s}{23}) (1 - \frac{s}{23})}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.7

Combine the numerators over the common denominator.

$\frac{1577 \frac{23 + s}{23} (1 - \frac{s}{23})}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.8

Write $1$ as a fraction with a common denominator.

$\frac{1577 \frac{23 + s}{23} (\frac{23}{23} - \frac{s}{23})}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.9

Combine the numerators over the common denominator.

$\frac{1577 \frac{23 + s}{23} \frac{23 - s}{23}}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.10

Combine exponents.

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Step 14.7.10.1

Combine $1577$ and $\frac{23 + s}{23}$ .

$\frac{\frac{1577 (23 + s)}{23} \cdot \frac{23 - s}{23}}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.10.2

Multiply $\frac{1577 (23 + s)}{23}$ by $\frac{23 - s}{23}$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{23 \cdot 23}}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.7.10.3

Multiply $23$ by $23$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{{(\frac{19 s^{2}}{529} + 19)}^{2}}$

Step 14.8

Simplify the denominator.

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Step 14.8.1

Factor $19$ out of $\frac{19 s^{2}}{529} + 19$ .

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Step 14.8.1.1

Factor $19$ out of $\frac{19 s^{2}}{529}$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{{(19 \frac{s^{2}}{529} + 19)}^{2}}$

Step 14.8.1.2

Factor $19$ out of $19$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{{(19 \frac{s^{2}}{529} + 19 (1))}^{2}}$

Step 14.8.1.3

Factor $19$ out of $19 \frac{s^{2}}{529} + 19 (1)$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{{(19 (\frac{s^{2}}{529} + 1))}^{2}}$

Step 14.8.2

Apply the product rule to $19 (\frac{s^{2}}{529} + 1)$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{19^{2} {(\frac{s^{2}}{529} + 1)}^{2}}$

Step 14.8.3

Raise $19$ to the power of $2$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{361 {(\frac{s^{2}}{529} + 1)}^{2}}$

Step 14.8.4

Write $1$ as a fraction with a common denominator.

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{361 {(\frac{s^{2}}{529} + \frac{529}{529})}^{2}}$

Step 14.8.5

Combine the numerators over the common denominator.

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{361 {(\frac{s^{2} + 529}{529})}^{2}}$

Step 14.8.6

Apply the product rule to $\frac{s^{2} + 529}{529}$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{361 \frac{{(s^{2} + 529)}^{2}}{529^{2}}}$

Step 14.8.7

Raise $529$ to the power of $2$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{361 \frac{{(s^{2} + 529)}^{2}}{279841}}$

Step 14.9

Combine $361$ and $\frac{{(s^{2} + 529)}^{2}}{279841}$ .

$\frac{\frac{1577 (23 + s) (23 - s)}{529}}{\frac{361 {(s^{2} + 529)}^{2}}{279841}}$

Step 14.10

Multiply the numerator by the reciprocal of the denominator.

$\frac{1577 (23 + s) (23 - s)}{529} \cdot \frac{279841}{361 {(s^{2} + 529)}^{2}}$

Step 14.11

Combine.

$\frac{1577 (23 + s) (23 - s) \cdot 279841}{529 (361 {(s^{2} + 529)}^{2})}$

Step 14.12

Cancel the common factor of $1577$ and $361$ .

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Step 14.12.1

Factor $19$ out of $1577 (23 + s) (23 - s) \cdot 279841$ .

$\frac{19 (83 (23 + s) (23 - s) \cdot 279841)}{529 (361 {(s^{2} + 529)}^{2})}$

Step 14.12.2

Cancel the common factors.

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Step 14.12.2.1

Factor $19$ out of $529 (361 {(s^{2} + 529)}^{2})$ .

$\frac{19 (83 (23 + s) (23 - s) \cdot 279841)}{19 (529 (19 {(s^{2} + 529)}^{2}))}$

Step 14.12.2.2

Cancel the common factor.

$\frac{19 (83 (23 + s) (23 - s) \cdot 279841)}{19 (529 (19 {(s^{2} + 529)}^{2}))}$

Step 14.12.2.3

Rewrite the expression.

$\frac{83 (23 + s) (23 - s) \cdot 279841}{529 (19 {(s^{2} + 529)}^{2})}$

Step 14.13

Cancel the common factor of $279841$ and $529$ .

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Step 14.13.1

Factor $529$ out of $83 (23 + s) (23 - s) \cdot 279841$ .

$\frac{529 (83 (23 + s) (23 - s) \cdot 529)}{529 (19 {(s^{2} + 529)}^{2})}$

Step 14.13.2

Cancel the common factors.

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Step 14.13.2.1

Cancel the common factor.

$\frac{529 (83 (23 + s) (23 - s) \cdot 529)}{529 (19 {(s^{2} + 529)}^{2})}$

Step 14.13.2.2

Rewrite the expression.

$\frac{83 (23 + s) (23 - s) \cdot 529}{19 {(s^{2} + 529)}^{2}}$

Step 14.14

Multiply $529$ by $83$ .

$\frac{43907 (23 + s) (23 - s)}{19 {(s^{2} + 529)}^{2}}$