Which equations is true? choose all answers that are correct. click to see answers and angle
2 answers:
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On the unit circle: the end of the terminal side of a 90 degree angle is (1,0) where 1 is the value of sin(90°) and 0 is the value of cos(90°)
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radians. if f(x) = sin(x) in radians, f() = 1/2
On the graph of sine: 90° =