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Question

If P is the solution set of 3x+4<2x3,xϵN and
Q is the solution set of 4x5<12,xϵW, find Q-P.
[4 MARKS]

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Solution

Solving inequation P and Q: 1.5 Marks each
Answer: 1 Mark

3x+4<2x3,xϵN
5x<7x>75x=2,3,4...P=2,3,4...
Now, 4x5<12,xϵW4x<17x<174,x=1,2,3,4Q=0,1,2,3,4
QP=0,1

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