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OpenStudy (anonymous):
Evaluate the trigonometric functions by memory or by constructing appropriate triangles for the given special angles.
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OpenStudy (anonymous):
OpenStudy (anonymous):
@dpaInc @phi @THE_PROPHET @zepp
OpenStudy (cwrw238):
csc 30 = 1 /sin 30 = 1 / 0.5 = 2
OpenStudy (anonymous):
ty
OpenStudy (cwrw238):
pi/4 = 180/4 = 45 degrees sin 45 = 1/sqrt2
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