Question

If n(A) = 5 , n(B) = 6 n(AU B ) = 2 then n (A U B) is

Answer 1

Already answer given in question....

Answer is 2......

Answer 2

hello.......i think you have to find

n ( A n B )

formula for n ( A n B )

n ( AnB ) = n(A) + n(B) - n ( AuB)

n ( AnB ) = 5 + 6 - 2

n ( AnB ) = 11 - 2

n ( AnB ) = 9

n(A) = 5

n(B) = 6

n( A U B ) = 2

n( A n B ) = 9

ANSWER : 9