SOLUTION: Solve {{{sin2x-cosx=0}}} given that 0 &#8804; x < 2&#960;

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Question 1102276: Solve sin2x-cosx=0 given that 0 ≤ x < 2π
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Use the double angle formula to replace sin(2x).

If you are working a problem like this, then you should be able to finish from there:
factor the resulting equation
find the roots
find the angles between 0 and 2pi that satisfy the equation