Let X = {a, b, c} defined by f : X

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Since, we have incomplete data, we assume as follows:

Let X = {a, b, c} defined by f : X $\rightarrow$ R such that f(x) = x+1 $\forall x\in X$ . Find all such values of f(x).

Solution:

f(x) = x+1

f(a) = a+1

f(b) = b+1

f(c) = c+1

Thus, all values of f(x) are {a+1, b+1, c+1}.

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