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Trigonometry 18 Online
OpenStudy (anonymous):

find all solutions of the equation cos ( theta) - 1 =0

OpenStudy (anonymous):

cos(theta)=1 Use the unit circle to find everywhere this is true.

OpenStudy (anonymous):

if you think in terms of the unit circle think of cos(theta)=x/r

OpenStudy (anonymous):

r=1 on the unit circle

OpenStudy (anonymous):

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