Question

if m and n are the roots of quadratic equation...

Answer 1

So m, n are roots of x^2 - 3x + 1=0

so m+n = 3 (-b/a) and m×n = 1 (c/a)

Now, m/n + n/m = (m^2 + n^2)/m×n

((m+n)^2 - 2mn)/m×n

Substituting the values..

=((3)^2 - 2×1)/1

=(9-2)

=7

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