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3. Suppose f:Z Z, with defined by f(x) = 3x 2 + 3. Note that both the domain and the target are equal to Z,

3. Suppose f:Z Z, with defined by f(x) = 3x²+ 3. Note that both the domain and the target are equal to Z, the set of all integers.

Explainusing the definition of an onto functionwhy the function f is or is not onto.

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