Trigonometry Examples

Find the Reference Angle (2pi)/3
Since the angle is in the second quadrant, subtract from .
Simplify the result.
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To write as a fraction with a common denominator, multiply by .
Combine fractions.
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Combine and .
Combine the numerators over the common denominator.
Simplify the numerator.
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Move to the left of .
Subtract from .
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