If M = {x : 3 \(\leq\) x < 8} and N = {x :
MATHEMATICS
WAEC 2017
If M = {x : 3 \(\leq\) x < 8} and N = {x : 8 < x \(\leq\) 12}, which of the following is true?
i. 8 \(\in\) M \(\cap\) N
ii. 8 \(\in\) M \(\cup\) N
iii. M \(\cap\) N = \(\varnothing\)
- A. iii only
- B. i and ii
- C. ii and iii only
- D. i, ii and iii
Correct Answer: A. iii only
Explanation
M = {3, 4, 5, 6, 7,}, N = {9, 10, 11, 12}
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