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OpenStudy (anonymous):
The point (0.83265, 0.55380) lies on the unit circle. If a terminal arm is drawn through this point, what is the sine ratio of the angle?
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OpenStudy (barrycarter):
@satellite73 Actually, that's the tangent. The sin is opposite over hypotenuse. Since it's on the unit circle, the hypotenuse is 1, so the sin is the y coordinate or 0.55380
OpenStudy (anonymous):
since it is a unit circle the y component of the point will be its sine ratio, .55380
OpenStudy (anonymous):
ho ho ho so it is!
OpenStudy (anonymous):
second coordinate is sine, first is cosine, tangent is second over first. my apologies
OpenStudy (anonymous):
ahaha okay, thanks you guys
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