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20 questions
Based on the unit circle, what is the value of sin?
y
x
x/y
y/x
Based on the unit circle, what is the value of cos?
y
x
x/y
y/x
Find sin(-240°)
(√3)/2)
(-1/2)
(√2/2)
(1/2)
Find cos(600°)
(-1/2)
(-√3/2)
(√3/2)
(√2/2)
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