Question

Which of the following is true of the location of the terminal side of an angle, Theta, whose sine value is One-half?

Theta has a reference angle of 30° and is in Quadrant I or II
Theta has a reference angle of 30° and is in Quadrant I or IV
Theta has a reference angle of 60° and is in Quadrant I or II
Theta has a reference angle of 60° and is in Quadrant I or IV

Answer 1

the answer is A

Explanation:

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Answer 2

Theta has a reference angle of 30° and is in Quadrant I or II

Explanation:

Sin(theta) = ½

Basic angle: 30

Angles:

30,

180-30 = 150

Because sin is positive in quadrants 1 and 2