Question

find B×A if A={m,n} B={1,-4}.
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Answer 1

Answer:

{(1,m),(1,n),(-4,m),(-4,n)}

Step-by-step explanation:

B x A = {m,n} x {1,-4}

{(1,m),(1,n),(-4,m),(-4,n)}

In this coordinates {(B1,A1),(B1,A2),(B2,A1),(B2,A2)}

Here we take B as first because they are asked B xA.

B1=1

B2=-4

A1=m

A2=n