Trigonometry Examples

$a = \arctan (\frac{30}{100})$

Step 1

Cancel the common factor of $30$ and $100$ .

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Step 1.1

Factor $10$ out of $30$ .

$a = \arctan (\frac{10 (3)}{100})$

Step 1.2

Cancel the common factors.

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Step 1.2.1

Factor $10$ out of $100$ .

$a = \arctan (\frac{10 \cdot 3}{10 \cdot 10})$

Step 1.2.2

Cancel the common factor.

$a = \arctan (\frac{10 \cdot 3}{10 \cdot 10})$

Step 1.2.3

Rewrite the expression.

$a = \arctan (\frac{3}{10})$

$a = \arctan (\frac{3}{10})$

$a = \arctan (\frac{3}{10})$

Step 2

Evaluate $\arctan (\frac{3}{10})$ .

$a = 0.29145679$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$