Question

Find the product of :
(m+n-6)*(1/m²-1/n²)

Answer 1

Answer:

(m+n-6)*(1/m2-1/n2)

=1/m2(m+n-6)-1/n2(m+n-6)

=m/m2+n/m2-6/m2-m/n2-n/n2+6/n2

=1/m+n/m2-6/m2-m/n2-1/n+6/n2

=(1/m-1/n)-(6/m2-6/n2)+(n/m2-m/n2)     Ans.