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(4X3 pts) Determine whether each of these functions from {a,b,c,d; to itself is a) one to one b) onto f(a)-b, f(b)-a, f(c)-c, f(d)-d f(a)-b, f(b)-b,

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(4X3 pts) Determine whether each of these functions from {a,b,c,d; to itself is a) one to one b) onto f(a)-b, f(b)-a, f(c)-c, f(d)-d f(a)-b, f(b)-b, f(c)-d, f(d) c f(a)-d, f(b)-b, f(c)-c, f(d)-d

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