12
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The Unit Circle

Question 12 • AZ-Common Core Algebra II B

The angles that share the same sine value as sin(45°) have terminal sides in quadrant IIIIIIV(none of the quadrants).

Answer
A
II
B
III
C
IV
D
(none of the quadrants)

Explanation

Since sin(45°) = √2/2, another angle from 0° to 360° with the same sine is 135°. Sine is positive in quadrants I and II, and 135° lies in quadrant II. So the correct choice is II.

AI-written and checked against the verified answer.

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