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Given #theta = (19pi) / 6# how do you find #sintheta#?

1 Answer

Jul 25, 2015

Find #sin ((19pi)/6)#

Ans: #-1/2#

Explanation:

On the trig unit circle,

#sin ((19pi)/6) = sin ((7pi)/6 + (12pi)/6) = sin ((7pi)/6 + 2pi) =#

#= - sin ((pi)/6) = - 1/2#

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