If X = {all the perfect squares less than 40}
Y = {all the odd numbers fro, 1 to 15}. Find X ∩ Y.
- {3, 9}
- {9}
- {9, 25}
-
{1, 9}
The correct answer is: D
Explanation
All the perfect squares < 40X = {1, 4, 9, 16, 25, 36}
All the odd numbers from 1 to 15
Y = {1, 3, 5, 7, 9, 11, 13, 15}
X ∩ Y = {1, 9}