If A and B are two sets such that A -1-2-3- n A - B -9- then n B isA- 3 - 6- 9D- 1

The correct option is A 3A = { 1, 2, 3}⇒ n(A)=3 n(A× B)= n(A)· n(B) ⇒ 9=3 × n(B) ⇒ n(B)=3 nbsp; ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Number of Elements in a Cartesian Product

If A and B ar...

Question

If $A$ and $B$ are two sets such that $A = {- 1, 2, 3}, n (A \times B) = 9,$ then $n (B)$ is

9

No worries! We‘ve got your back. Try BYJU‘S free classes today!

3

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

6

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

Suggest Corrections

Similar questions

If there are two sets A and B such that $n (¯ A \cap ¯ B) = n (A \cap B)$ . Universal set contains 'x' elements. Then n (A) + n (B) is

A

B

n (A) = 3

n (B) = 5,

n (A \times B) =

U

A

B

n (A) = 50, n (B) = 60, n (A \cap B) = 20

n (A^{'} \cap B^{'}) =

n (A) = 115, n (B) = 326, n (A - B) = 47,

n (A \cup B)

A

B

n (A \cup B) = 50

n (A) = 25

n (B) = 32

n (A \cap B)

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program