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OpenStudy (anonymous):
If 0° < x° < 90° and sin x = 1/2 , then cos x = ?
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myininaya (myininaya):
|dw:1326694832444:dw|
myininaya (myininaya):
\[\cos(x)=\frac{adj}{hyp}=\frac{adj}{2}\]
OpenStudy (anonymous):
|dw:1326694881798:dw|
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