Question

let a,b,c be the sides of a triangle(no two of them are equal) and 'a' belongs to R. if the roots of this equation are real then prove that ...... 'a' is less than 4/3..

Answer 1

\[x ^{2} +2x(a+b+c) +3t(ab+bc+ca)=0\]

Answer 2

its t whom we are concerned about and not 'a' .sorry for that mistake...!!!