Question

If A = {1,2), B = {x:X E N and x square - 9 = 0). Find AXB.​

Answer 1

Step-by-step explanation:

A={1,2}

According to the question,

x^2-9=0

x^2=9

x=√9

x=±3

B={3,-3}

AXB={(1,3),(1,-3),(2,3),(2,-3)}