Question

if a,B are the roots of x2+x+1=0 then a/b+b/a​

Answer 1

Answer:

$here \: a = 1 \\ b = 1 \\ = > \frac{a}{b } + \frac{b}{a} \\ = > \frac{1}{1} + \frac{1}{1} \\ = > 2$

this is your answer mate

Answer 2

Answer:

Step-by-step explanation:

sum of roots is a+b=-1

product of the roots=1

and

a/b+b/a=a^2+b^2/ab

a^2+b^2=(a+b)^2-2ab=(-1)^2-2(1)=1-2=-1

now

a^2+b^2/ab=-1/1=-1