Question

prove that (m+n)-1 (m-1+ n-1) = (mn)-1

Answer 1

Answer:

L.H.S. (m + n)-1 (m-1 + n-1)

= 1/(m+n) (1/m +1/n) = 1/(m + n) .(n + m)/mn = 1/mn

= (mn)-1

= R.H.S

Step-by-step explanation:

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