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12 questions from this quiz
Exactly 1 unit
(cosθ,sinθ)(\cos \theta, \sin \theta)(cosθ,sinθ)
90°90°90°
Sine
Cosine
Second and third
given angle −180°- 180°−180°
45°45°45°
12\frac{1}{\sqrt{2}}21
32\frac{\sqrt{3}}{2}23
−12-\frac{1}{\sqrt{2}}−21
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