SOLUTION: sinx = cos2x Solve the equation?.....is that possible?

Algebra.Com
Question 341689: sinx = cos2x
Solve the equation?.....is that possible?
Answer by Edwin McCravy(20081)   (Show Source): You can put this solution on YOUR website!



Use the identity  on the right side:





The left side factors just like  factors as 



Set each factor = 0

Setting the first factor = 0






Setting the second factor = 0





So there are 3 solutions in degrees between 0° and 360°.

Edwin
RELATED QUESTIONS

Solve... (answered by stanbon)
How do you solve... (answered by lwsshak3)
Show that (tanx + cotx)cos2x = 2cot2x , hence solve the equation (tanx + cotx)cos2x = 2 , (answered by Alan3354)
Solve the equations I. cosxsinx-sinx=0 II. Cos3x+cos2x+cosx=0 III.... (answered by lwsshak3)
Please help with the following: Solve cos2x+sinx=1 in [0,2π)... (answered by lwsshak3)
Given that sinx=3/5 and it is in quadrant 1. Find... (answered by Cromlix)
Arrange the steps in the correct order to solve this trigonometric equation.... (answered by Solver92311,ikleyn)
Determine the values of sin2x, cos2x, and tan2x: Sinx=3/5, and x is acute (answered by Edwin McCravy)
prove: sinx - sinx cos2x... (answered by Alan3354)