Trigonometry Examples

$\arccos (\frac{2.9}{3.2})$

Step 1

To convert radians to degrees, multiply by $\frac{180}{π}$ , since a full circle is $360 °$ or $2 π$ radians.

$(\arccos (\frac{2.9}{3.2})) \cdot \frac{180 °}{π}$

Step 2

Divide $2.9$ by $3.2$ .

$\arccos (0.90625) \cdot \frac{180}{π}$

Step 3

Evaluate $\arccos (0.90625)$ .

$0.43646902 \cdot \frac{180}{π}$

Step 4

Multiply $0.43646902 \frac{180}{π}$ .

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Step 4.1

Combine $0.43646902$ and $\frac{180}{π}$ .

$\frac{0.43646902 \cdot 180}{π}$

Step 4.2

Multiply $0.43646902$ by $180$ .

$\frac{78.56442517}{π}$

Step 5

Replace $π$ with an approximation.

$\frac{78.56442517}{3.14159265}$

Step 6

Divide $78.56442517$ by $3.14159265$ .

$25.00783323$

Step 7

Convert to a decimal.

$25.00783323 °$