JEE Math Practice Question
For $$x \in R - \left\{ {0,1} \right\}$$, Let f1(x) = $$1\over x$$, f2 (x) = 1 – x and f3 (x) = $$1 \over {1 - x}$$ be three given functions. If a function, J(x) satisfies (f2 o J o f1) (x) = f3 (x) then J(x) is equal to :
- A.f1 (x)
- B.$$1 \over x$$ f3 (x)
- C.f2 (x)
- D.f3 (x)
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