Can someone just get me started on this problem? Thanks. 2cos(theta)-sin2(theta)=0 I tried to substitute 2sin(theta)cos(theta) for the sin2(theta), but that didn't really get me anywhere.
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now factor and divide Can you solve it now?
How did you get from the second line to the 3rd line?
I took out as a common factor in the left hand side.
Got it now. Thanks!
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