SOLUTION: Please help me solve this equation 2csc^2 x=3cot^2 x-1

Algebra ->  Trigonometry-basics -> SOLUTION: Please help me solve this equation 2csc^2 x=3cot^2 x-1      Log On


   



Question 410701: Please help me solve this equation
2csc^2 x=3cot^2 x-1

Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
2csc^2 x=3cot^2 x-1
..
2csc^2 x=3cot^2 x-1
2csc^2x=3cot^2x-1
(2/sin^2x)-(3cos^2x/sin^2x)+1=0
LCD=sin^2x
2-3cos^2x-sin^2x=0
2-3cos^2x+(1-cos^2x)=0
2-3cos^2x+1-cos^2x)=0
-4cos2^x=-3
cos^2x=3/4
Cosx=sqrt(3/4) or sqrt(3)/2
x=30 deg (0 < x <360 deg)