SOLUTION: Solve {{{sin2x-cosx=0}}} given that 0 ≤ x < 2π
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Question 1102276: Solve given that 0 ≤ x < 2π
Answer by greenestamps(13200) (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
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