If \( \mathrm{f}^{2}(\mathrm{x}) \cdot \mathrm{f}\left(\frac{1-\mathrm{x}}{1+\mathrm{x}}\right)=....
If \( \mathrm{f}^{2}(\mathrm{x}) \cdot \mathrm{f}\left(\frac{1-\mathrm{x}}{1+\mathrm{x}}\right)=\mathrm{x}^{3}, \mathrm{x} \in \mathrm{R}-\{-1,1\} \) and \( \mathrm{f}(\mathrm{x}) \)
\( \mathrm{P} \)
\( \neq 0 \), then which of the following is correct.
(A) \( \mathrm{f}(2) \cdot \mathrm{f}(-2)=16 \)
(B) \( \mathrm{f}(2) \mathrm{f}(-2)=8 \)
(C) \( \mathrm{f}(2)=-12 \)
(D) \( \mathrm{f}(3)=-18 \)
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