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secondary 4 | E Maths
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Eunice
Eunice

secondary 4 chevron_right E Maths

Can someone help me with these 2 questions?

Date Posted: 6 years ago
Views: 284

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Ann
Ann's answer
79 answers (Tutor Details)
1st
2,q fits 2×3+q=4
so q=-2
Jiayang
Jiayang
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**