Solve for x:

1. 2sin(2x)+cos(x)=0
2. cos(2x)=-2sin(x)
3. tan(x)=2sin(x)

Similar Questions

2sin(x)cos(x)+cos(x)=0I'm looking for exact value solutions in [0, 3π] So I need to find general solutions to solve the
1. 6 answers
Verify the identities.Cos^2x - sin^2x = 2cos^2x - 1 When verifying identities, can I work on both side? Ex. 1 - sin^2x - sin^2x
1. 1 answer
For the trig equation: 2sin(x)tan(x) = tan(x),Why can't I just divide both sides by tan(x) and be left to solve only 2sin(x)=1?
1. 3 answers
y= 2sin^2 xy=1- sinx find values of x inthe interval 0<x<360 if 2sin^x = 1-sinx this can be arranged into the quadratic. 2sin^2
1. 0 answers