WAEC - Further Mathematics (2021 - No. 14)
Given that P = { x: 0 ≤ x ≤ 36, x is a factor of 36 divisible by 3} and Q = { x: 0 ≤ x ≤ 36, x is an even number and a perfect square}, find P n Q.
{1,4,9,36}
{3,9.36}
{9,36}
{36}
解释
P = {3,6,9,12,18,36}; Q = { 4,36}
P n Q = {36}