roots a/b, 1/ab
sor = a/b + 1/ab
= (a^2+1 )/ab
por = a/b X 1/ab
= a/ab^2
=1/b^2
form the eq with details pls.
(answer provided is abx^2 -a^2x +1 = 0)
I presume "sor" means "sum of roots" and "por" means "product of roots".
From that, I also presume that you are to create a quadratic equation which has roots as given.
Let be a quadratic equation.
The sum of roots is and the product of roots is .
(This can be proved from forming the product and sum of the roots as given by the quadratic formula and simplifying the expression you get.)
So this gives you
But if you simplify this equation, you don't get what you've given as the answer.
If you try and solve what your answer provides using the quadratic formula you get:
and that's nowhere near an equation giving the above as roots.
So there's either something wrong with the question or it's been copied down wrong.