Let A and B be defined as follows: A = {a} B = {a, b, c} Write one ordered pair

Question

Let A and B be defined as follows: A = {a} B = {a, b, c} Write one ordered pair that is in the set AxB but is not in the set BxA., or explain why no such ordered pair exists. Write one ordered pair that is in the set BxA but is not in the set AxB, or explain why no such ordered pair exists. Let sets A and B be defined as follows: A = {Tom, Bo} B = {Java, Python, R} List as a set of ordered pairs one 1-1 function from A to B, or explain why no such function exists. List as a set of ordered pairs one onto function from A to B, or explain why no such function exists.

Explanation / Answer

A={a}

B={a,b,c}

AXB={(a,a),(a,b),(a,c)}

BXA={(a,a),(b,a),(c,a)}

(a) so the required pair is (a,b),(a,c)

(b)the required orderd pair is (b,a) (c,a)

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