Find the Reference Angle 45

Problem

45

Solution

1. Identify the given angle and its quadrant. The angle is 45 which lies in the first quadrant (0<45<90.

2. Apply the rule for reference angles in the first quadrant. For any angle θ in Quadrant I, the reference angle θ′ is equal to the angle itself.

3. Calculate the reference angle using the formula θ′=θ

4. Substitute the value to find θ′=45

Final Answer

θ′=45

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