( frac{1}{1+a^{(n-m)}}+ frac{1}{1+a^{(m-n)}}=n^{?} ) – McqOptions

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1.	( frac{1}{1+a^{(n-m)}}+ frac{1}{1+a^{(m-n)}}=n^{?} )
A.	0
B.	1/2
C.	1
D.
Answer» C. 1

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