If a, b, c are sides of a triangle, then `((a+b+c)^(2))/(ab+bc+ca)` always belongs to

If a,b,c are the sides ofa triangle then the expression (a^(2)+b^(2)+c^(2))/(ab+bc+ca) lies in the interval

If a,b,c are the sides of a triangle then the range of (ab+bc+ca)/(a^(2)+b^(2)+c^(2)) is

If a^(2)+b^(2)+c^(2)=ab+bc+ca where a,b,c are the sides of a triangle,then the largest angle of that triangle is

If a,b,c are the lengths of the sides of a triangle,then the range of (ab+bc+ca)/(a^(2)+b^(2)+c^(2))

If a,b,c are the sides of a triangle ABC such that x^(2)-2(a+b+c)x+3 lambda(ab+bc+ca)=0 has real roots.then

If a,b,c are in A.P., then (bc)/(ca+ab),(ca)/(bc+ab),(ab)/(bc+ca)