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Mathematics 17 Online
OpenStudy (anonymous):

Which of the following are solutions to the equation 4cos^2 x-3=0 A)12pi/6 B)11pi/6 C)pi/6 D)5pi/6

OpenStudy (solomonzelman):

` let cos(x) = a ` Then just solve the quadratic.

OpenStudy (anonymous):

I really don't get it can you please help me out ?

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