Let f:R-R be a function such that f(x) = x^2+2x+1/ x^2+1 then # IITJEE MAINS SOLUTION

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But sir at x=1/2 and 2 have the same value nt it lies b/w [1, ♾️) do this function is many one for [1, ♾️)

Saurabh_pal