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12. Suppose, f(x)=(x+1) for x 2-1. If g(x) is the function whose graph is reflection of the graph of f(x) w.rtthe line y=x, then g(x) equals(A) - V - 1,x20 (B) x12x>-1 (C) Vx + 1x 2-1 (D) Vx - 1,x 20

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