SOLUTION: sin^2x/2-2cosx=cos^2x-2
Algebra.Com
Question 1169834: sin^2x/2-2cosx=cos^2x-2
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
sin^2x/2-2cosx=cos^2x-2
----------------
Do you have a question?
RELATED QUESTIONS
prove:
2-cos^2x =... (answered by stanbon)
√3 sin 2x + 2 cos^2x =... (answered by greenestamps)
cos^2x+2cosx+1=0 (answered by stanbon)
sin^2x - sin^4x = (cos^2)(sin^2x)
sin^2x - (sin^2x)(sin^2x) = (cos^2x)(sin^2x)
sin^2x (answered by jim_thompson5910)
solve cos (2x) = sin... (answered by lwsshak3)
Prove:
1-cot^2x/1+cot^2x=2cos^2-1
I tried this:
LHS... (answered by Alan3354)
verify that (cos x + sin x) = (sin... (answered by Edwin McCravy)
simplify sin x - sin^2 x *... (answered by Alan3354)
Find solutions for:... (answered by lwsshak3)