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April 20, 2014

Homework Help: trig 30

Posted by Ray on Wednesday, March 10, 2010 at 9:41pm.

If cos^2 theta -6 sin 2 theta =0, one value of theta is a)0 degrees b) 90 degrees c)180 degrees or D)255 degrees.
Please show me how to do it and not just give answer cause I have two more questions that are similar. Thanks so much.

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