Calculus Examples

$\frac{\frac{1}{2} \cdot \frac{\tan (5 x)}{\cos (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \tan (5 x))}{2}}{5}$

Step 1

Rewrite $\tan (5 x)$ in terms of sines and cosines.

$\frac{\frac{1}{2} \cdot \frac{\frac{\sin (5 x)}{\cos (5 x)}}{\cos (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \tan (5 x))}{2}}{5}$

Step 2

Rewrite $\tan (5 x)$ in terms of sines and cosines.

$\frac{\frac{1}{2} \cdot \frac{\frac{\sin (5 x)}{\cos (5 x)}}{\cos (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3

Simplify the numerator.

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Step 3.1

Multiply the numerator by the reciprocal of the denominator.

$\frac{\frac{1}{2} \cdot (\frac{\sin (5 x)}{\cos (5 x)} \cdot \frac{1}{\cos (5 x)}) + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3.2

Multiply $\frac{\sin (5 x)}{\cos (5 x)} \cdot \frac{1}{\cos (5 x)}$ .

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Step 3.2.1

Multiply $\frac{\sin (5 x)}{\cos (5 x)}$ by $\frac{1}{\cos (5 x)}$ .

$\frac{\frac{1}{2} \cdot \frac{\sin (5 x)}{\cos (5 x) \cos (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3.2.2

Raise $\cos (5 x)$ to the power of $1$ .

$\frac{\frac{1}{2} \cdot \frac{\sin (5 x)}{\cos^{1} (5 x) \cos (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3.2.3

Raise $\cos (5 x)$ to the power of $1$ .

$\frac{\frac{1}{2} \cdot \frac{\sin (5 x)}{\cos^{1} (5 x) \cos^{1} (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3.2.4

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

$\frac{\frac{1}{2} \cdot \frac{\sin (5 x)}{{\cos (5 x)}^{1 + 1}} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3.2.5

Add $1$ and $1$ .

$\frac{\frac{1}{2} \cdot \frac{\sin (5 x)}{\cos^{2} (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3.3

Combine.

$\frac{\frac{1 \sin (5 x)}{2 \cos^{2} (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3.4

Multiply $\sin (5 x)$ by $1$ .

$\frac{\frac{\sin (5 x)}{2 \cos^{2} (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}}{5}$

Step 3.5

To write $\frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}$ as a fraction with a common denominator, multiply by $\frac{\cos^{2} (5 x)}{\cos^{2} (5 x)}$ .

$\frac{\frac{\sin (5 x)}{2 \cos^{2} (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2} \cdot \frac{\cos^{2} (5 x)}{\cos^{2} (5 x)}}{5}$

Step 3.6

Multiply $\frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)})}{2}$ by $\frac{\cos^{2} (5 x)}{\cos^{2} (5 x)}$ .

$\frac{\frac{\sin (5 x)}{2 \cos^{2} (5 x)} + \frac{\ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)}) \cos^{2} (5 x)}{2 \cos^{2} (5 x)}}{5}$

Step 3.7

Combine the numerators over the common denominator.

$\frac{\frac{\sin (5 x) + \ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)}) \cos^{2} (5 x)}{2 \cos^{2} (5 x)}}{5}$

Step 4

Multiply the numerator by the reciprocal of the denominator.

$\frac{\sin (5 x) + \ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)}) \cos^{2} (5 x)}{2 \cos^{2} (5 x)} \cdot \frac{1}{5}$

Step 5

Multiply $\frac{\sin (5 x) + \ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)}) \cos^{2} (5 x)}{2 \cos^{2} (5 x)} \cdot \frac{1}{5}$ .

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Step 5.1

Multiply $\frac{\sin (5 x) + \ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)}) \cos^{2} (5 x)}{2 \cos^{2} (5 x)}$ by $\frac{1}{5}$ .

$\frac{\sin (5 x) + \ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)}) \cos^{2} (5 x)}{2 \cos^{2} (5 x) \cdot 5}$

Step 5.2

Multiply $5$ by $2$ .

$\frac{\sin (5 x) + \ln (\frac{1}{\cos (5 x)} + \frac{\sin (5 x)}{\cos (5 x)}) \cos^{2} (5 x)}{10 \cos^{2} (5 x)}$

Step 6

Simplify each term.

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Step 6.1

Convert from $\frac{1}{\cos (5 x)}$ to $\sec (5 x)$ .

$\frac{\sin (5 x) + \ln (\sec (5 x) + \frac{\sin (5 x)}{\cos (5 x)}) \cos^{2} (5 x)}{10 \cos^{2} (5 x)}$

Step 6.2

Convert from $\frac{\sin (5 x)}{\cos (5 x)}$ to $\tan (5 x)$ .

$\frac{\sin (5 x) + \ln (\sec (5 x) + \tan (5 x)) \cos^{2} (5 x)}{10 \cos^{2} (5 x)}$