Question 679493
2cosxsinx+sinx=0
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Factor:
sinx[2cos(x)+1) = 0
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sinx = 0 or 2cos(x)+1 = 0
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x = 0 or cos(x) = -1/2
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x = 0 or x = 150 degrees or x = 210 degrees
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cheers,
Stan H.
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