Question: On the unit circle, an angle terminates at the coordinate (x,y). What is the relationship between the x and y components of the coordinate and

On the unit circle, an angle terminates at the coordinate (x,y). What is the relationship between the x and y components of the coordinate and the trig functions sin and cos? How can we use those relationships to predict the sign ( /-) for these trig functions when an angle terminates within a given quadrant

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