The relationship between e, S and na is ______

1.	The relationship between e, S and n_a is ______
A.	(n_a=e* frac{1+S}{1+e} )
B.	(n_a=e* frac{1-S}{1-e} )
C.	(n_a= frac{1-S}{1+e} )
D.	(n_a=e* frac{1-S}{1+e} )
Answer» E.

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