Question

If n (A) = 3 and n (B) = 6 and A ⊆ B, then the number of elements in A ∩ B is equal to​

Answer 1

Answer:

what? make this clearly, whre is it

Step-by-step explanation:

Answer 2

Answer:

this is your answer.

Step-by-step explanation:

If n (A) = 3, n (B) = 6 and A ⊆ B. Then the number of elements in A ⋃ B is equal to

1) 3

2) 9

3) 6

4) None of these

Solution: (3)

A ⊆ B

A ⋃ B = B

|A ⋃ B| = |B|

n (B) = 6

n (A ⋃ B) = 6