Question

let A={factors of 24} and B={factors of 30} verify n(A-B)=n(A)-n(AnB)=n(AUB)-n(B)​

Answer 1

Answer:

hope it helps you have a nice day

Answer 2

Answer:

Step-by-step explanation:

A = { 1, 2 3, 4, 6, 8 , 12, 24 }

B = { 1, 2 ,3, 5, 6 ,10,15, 30 }

n ( A ) = { 8 }

n ( B ) = { 8 }

n ( A - B )

= ( 8 - 8 )

= 0

n ( A ) - n ( A ∩ B )

= 8 - 8

= 0

n ( A ∪ B ) - n ( B )

= 8 - 8

= 0

Hence it is proved.