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Let f: [1,2] -> [1, 4] and g : [1,2] -> ...

Let `f: [1,2] -> [1, 4] and g : [1,2] -> [2, 7]` be two continuous bijective functions such that `f(1)\=4 and g (2)=7`. Number ofsolution of the equation `f(x)=g(x)` in `(1,2)` is equal to

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