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OpenStudy (anonymous):
if sin Q = 8/17 find Cos Q
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OpenStudy (imstuck):
Do you know your basic trig identities? Like what is the sin of an angle equal to as far as side opposite, side adjacent and hypotenuse?
OpenStudy (lochana):
(sinQ)^2 + (cosQ)^2 = 1 cosQ = \[\sqrt{1-(8/17)^2}\]
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