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OpenStudy (anonymous):
2cos(2x)*sin(x+PI/4)-sin(2x)*cos(x+PI/4)=0 Solve.
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OpenStudy (y2o2):
\[2\cos(2x)\sin(x+{\pi \over 4}) - \sin(2x)\cos(x+{\pi \over 4}) = 0\] ?
OpenStudy (y2o2):
did i type it right ?
OpenStudy (anonymous):
yes you did.
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