Ann's answer to Eunice's Secondary 4 E Maths question.
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2,q fits 2×3+q=4
so q=-2
so q=-2
Date Posted:
6 years ago
**NO TYPO**
(a)
If k = 16,
ε = {4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
S = {5, 7, 9, 11, 13, 15}
T = {4, 9}
(b)
k = 25
S∩T = {x: x is an odd square number}
= {9}
(c)
n(S’∩T) = 6
=> S’∩T = {x: x is an even square number}
= {2² 4² 6² 8² 10² 12² 14²}\{14²}
Therefore, largest k = 14² = 196
**NO TYPO**
(a)
If k = 16,
ε = {4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
S = {5, 7, 9, 11, 13, 15}
T = {4, 9}
(b)
k = 25
S∩T = {x: x is an odd square number}
= {9}
(c)
n(S’∩T) = 6
=> S’∩T = {x: x is an even square number}
= {2² 4² 6² 8² 10² 12² 14²}\{14²}
Therefore, largest k = 14² = 196
**NO TYPO**
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