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16-04-2024
Mathematics

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Select each relation R⊆R×R for which 2R3.
1) R=(x,y)|y=x+1
2) R=(x,y)|x²+y²=13
3) R=(4,3),(3,2),(2,1)
4) R=(x,y)|2x-y=1
5) R=(1,2),(2,3),(2,4)

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