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Let A = {-2, -1, 0, 1, 2} and f:A→Z be a function defined by f(x)=x2−2x−3. Find : i) Range of f i.e. f(A) ii) Pre-images of 6, -3 and 5.

Answer»

Let A = {-2, -1, 0, 1, 2} and f:AZ be a function defined by f(x)=x22x3. Find :
i) Range of f i.e. f(A)
ii) Pre-images of 6, -3 and 5.



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