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OpenStudy (anonymous):
True or False: There are values of t so that the equation cos t =5/3 holds There are values of t so that sin t = 0.3 and cos t = - 0.6
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ganeshie8 (ganeshie8):
hint : the value of cos(t) lies between -1 and 1
ganeshie8 (ganeshie8):
\(\large -1 \le \cos(t) \le 1\)
OpenStudy (anonymous):
\[\sin ^2t+\cos ^2t=1\]
OpenStudy (anonymous):
So, are they both false?
OpenStudy (anonymous):
correct
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