Trigonometry Examples

$530 °$

Step 1

Find an angle that is positive, less than $360 °$ , and coterminal with $530 °$ .

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Step 1.1

Subtract $360 °$ from $530 °$ .

$530 ° - 360 °$

Step 1.2

The resulting angle of $170 °$ is positive, less than $360 °$ , and coterminal with $530 °$ .

$170 °$

Step 2

Since the angle $170 °$ is in the second quadrant, subtract $170 °$ from $180 °$ .

$180 ° - 170 °$

Step 3

Subtract $170$ from $180$ .

$10 °$