Question

(a^-1 +b^-1) ÷ (a^-2-b^-2)=​

Answer 1

Answer:

(a - b)

As

(a^2 - b^2) / (a+b)

= (a + b)(a - b)/(a+b)= (a - b)

Answer 2

Answer:

(a^-1+b^-1)/(a^-1+b^-1)(a^-1-b^-1)

=1/(a^-1-b^-1)

hope it helps

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