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Question

Given A={x:1x4,xϵR} and
B={x:4x<2,xεR} Represent AB and AB on the number line.
[4 MARKS]

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Solution

Solving the inequation: 1 Mark each
Answer: 1 Mark
Solution on the number line: 1 Mark

A={1,0,1,2,3,4}and B={4,3,2,1,0,1}AB=1,0,1=x:xϵ R,1x<2

A=All the elements of the set of R except for A.A =AB=4,3,2So,
AB=4,3,2AB=x:xϵR,4x<1

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