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Trigonometry Examples

Popular Problems

Find the Reference Angle 81 degrees

$81 °$

Step 1

Since $81 °$ is in the first quadrant, the reference angle is $81 °$ .

$81 °$

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

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