Question

C)
b) 2"
a) 2n
6.
If n (AXB) = 15 and n (A) = 3 then n (B) is
a) 12
b) 5
c)
Passage type question:
Passage - I: If A = {1, 2, 3}; B = {a,b,c},
f = {(1,a), (1, b), (1.c)}; g = {(1, a),
h = {(1, a), (2, b), (3, a)}; i = {(1, a),
7. Among the above, an one to one relation from A to I
a) f
b) g
c)
8.
Among the above, an one to many relation from A to
a) f
c)
b) g​

Answer 1

Answer:

pairing each element of first set with each element of second set.

Given : n(A)=m and n(B)=n 

Now, n(A×B)=n(A)×n(B)=m×n=mn.

Thus when m=8 and n=6, we have n(A×B)=48

Answer 2

Answer:

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