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Let A = {-1,0,1,2}, B = {-4,-2,0,2} and f , g : A rarr B be functions defined f(x) = x^(2)-x, x inRand g(x) = 2 |x-(1)/2|-1,x inR. Are f and g equal ? Justify your answer. (Hint : One may note that two functions f : A rarr B and g : A rarr Bsuch that f (a) = g(a) A a inA, are called equal functions). |
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