Question

plz let fast...............​

Answer 1

x^2 - 5x +6 =0

a^2 + b^2 = ( a+b)^2 -2 ab

As sum of roots (a+b)= 5


product of roots ( ab)= 6

So (5)^2 -2(6) = 25 -12 = 13


Now a/b + b/a = a^2 + b^2)/ab = 13/6