Question

if A=1,2,3,4,5}AND B={3,4,7,8}THEN AπB​

Answer 1

Answer:

sorry but I am not confirmed about the answer plz check once but I will tell you the answer

Step-by-step explanation:

A={1,2,3,4,5} ;B={1,3,5,7}

n(A)=5; n(B)=4

n(A×B)=n(A)×n(B)=5×4=20

So ans is 20