Let \({\rm{f}}\left( {\rm{a}} \right) = \frac{{{\rm{a}} - 1}}{{{\rm{a}} + 1}}\).Consider the following:1. f(2a) = f(a) + 12. \({\rm{f}}\left( {\frac{1}{{\rm{a}}}} \right) = - {\rm{f}}\left( {\rm{a}} \right)\)Which of the above is/are correct?

Let \({\rm{f}}\left( {\rm{a}} \right) = \frac{{{\rm{a}} - 1}}{{{\rm{a}

1.	Let \({\rm{f}}\left( {\rm{a}} \right) = \frac{{{\rm{a}} - 1}}{{{\rm{a}} + 1}}\).Consider the following:1. f(2a) = f(a) + 12. \({\rm{f}}\left( {\frac{1}{{\rm{a}}}} \right) = - {\rm{f}}\left( {\rm{a}} \right)\)Which of the above is/are correct?
A.	1 only
B.	2 only
C.	Both 1 and 2
D.	Neither 1 nor 2
Answer» C. Both 1 and 2

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