If and are two distinct linear functions defined on such that they map onto

MATHEMATICS · Numerical · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

If ff and gg are two distinct linear functions defined on R\mathbb{R} such that they map [−1,1][-1,1] onto [0,2][0,2], and h:R∖{−1,0,1}→Rh:\mathbb{R}\setminus\{-1,0,1\}\to\mathbb{R} is defined by h(x)=f(x)g(x)h(x)=\frac{f(x)}{g(x)}, then ∣h(h(x))+h(h(1/x))∣>n|h(h(x))+h(h(1/x))|>n. Find the maximum integral value of nn.

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