Question

if the set A has 3 elements and set B = {3,4,5},then find the number of element in (A*B)​

Answer 1

Answer:

9

Step-by-step explanation:

Method 1 :Assume, set A = {1,2,6}

And as given in the question, set B = {3,4,5}

So now, multiply each element with another

1×3=3

1×4=4

1×5=5

2×3=6

2×4=8

2×5=10

6×3=18

6×4=24

6×5=30

As there were no repeated elements, the total number of elements is 9.

Method 2: Number of elements in set A = 3

Number of elements in set B = 3

Total number of elements in set (A×B) = 3×3=9