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OpenStudy (anonymous):
tan theta is equal to 3, what is the value of 2 theta?
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OpenStudy (jennychan12):
draw a triangle. find thetha and multiply it by 2.
OpenStudy (anonymous):
How do I know what the sine and cosine are from theta=3? Is sine 3, and cosine 1?
OpenStudy (jennychan12):
|dw:1355200926798:dw| sorry really messy thetha = 71.56 so 2 thetha = 143.12
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