If x n2 1 n is positive integer and 1 leq n leq... - JAMB Mathematics 2009 Question
If x = {n2 + 1 : n is positive integer and 1\(\leq\) n \(\leq\) 5}
y = {5n : n is positive integer and 1 \(\leq\) n \(\leq\) 5}, find x ∩ y.
y = {5n : n is positive integer and 1 \(\leq\) n \(\leq\) 5}, find x ∩ y.
A
{5, 10}
B
{5, 10, 15}
C
{2, 5 ,10}
D
{5, 10, 15, 20}
correct option: a
X : (n2 + 1) = 2, 5, 10, 17, 26
y : 5n = 5, 10, 15, 20, 25
x ∩ y = (5, 10)
y : 5n = 5, 10, 15, 20, 25
x ∩ y = (5, 10)
Please share this, thanks:
Add your answer
No responses