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1 + 1 =? 1 + a(n - m) 1 + a(m - n)

Correct Answer: 1

Explanation:

1 + 1 =
1  +  1
1 + an
am
1 + am
an
1 + a(n - m) 1 + a(m - n)



   = am + an
(am + an) (am + an)



   = (am + an)
(am + an)


   = 1.


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