Define f: {1, 2} × Z → Z by f(a, b) := 2b + a. Determine the following (make sure to justify your answers):
(a) Domain of f.
(b) Range of f.
(c) Is ƒ one to one?
(d) Is f onto?
(e) Is f bijective?
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Define f: {1, 2} × Z → Z by f(a, b) := 2b + a. Determine the following (make sure to justify your answers):
(a) Domain of f.
(b) Range of f.
(c) Is ƒ one to one?
(d) Is f onto?
(e) Is f bijective?
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