Homework Soursesole equation in radians cosxsin2xsSolutioncosxsin2x cosx1co
sole equation in radians cosx=sin^2x/s
Solution
cosx=sin2x
cosx=1-cos2x
cos2x+cosx-1=0
cosx =[-1+(1+4)]/2,cosx =[-1-(1+4)]/2
cosx =[-1+5]/2,cosx =[-1-5]/2
range of cosx is [-1,1]
so cosx =[-1+5]/2
x =0.9 radians
![sole equation in radians cosx=sin^2x/sSolutioncosx=sin2x cosx=1-cos2x cos2x+cosx-1=0 cosx =[-1+(1+4)]/2,cosx =[-1-(1+4)]/2 cosx =[-1+5]/2,cosx =[-1-5]/2 range o](/WebImages/3/sole-equation-in-radians-cosxsin2xssolutioncosxsin2x-cosx1co-967661-1761499110-0.webp "sole equation in radians cosx=sin^2x/sSolutioncosx=sin2x cosx=1-cos2x cos2x+cosx-1=0 cosx =[-1+(1+4)]/2,cosx =[-1-(1+4)]/2 cosx =[-1+5]/2,cosx =[-1-5]/2 range o")
