1.

If a = ( 5 + 1) / ( 5 - 1) and b = ( 5 - 1) / ( 5 + 1) then the value of (a2 + ab + b2) / (a2 - ab + b2) is ?

A. 3/4
B. 4/3
C. 3/5
D. 5/3
Answer» C. 3/5


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