Question

(m-n)x^2+(n-l)x+(l-m)=0 if roots are equal prove that l,m,n are in ap

Answer 1

if roots are equal then discriminant(D) is equal to zero.....
with the help of this concept uu can prove ur question.......

Answer 2

So here is your answer..VERY HAPPY TO HELP U..mark as brainliest