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Assessment
What is the radius of the unit circle?
1
2
π
0
What coordinates represent the point on the unit circle at an angle of 90 degrees?
(0, 1)
(1, 0)
(√2/2, √2/2)
(1, 1)
Which trigonometric functions can be derived from the coordinates of points on the unit circle?
Sine and Cosine
Tangent and Cotangent
Secant and Cosecant
All of the above
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