Question

maths help plzz,mark as brillient.​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Que 2. By the definition of A×B={(x,y): x belongs to A and y belongs to B}. So here P={1,2,3} and Q={2,3,4}. So P×Q={(1,2),(1,3),(1,4),(2,2),(2,3),(2,4),(3,2),(3,3),(3,4)}.so the total number is 9.