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[" 38.If "R={(x,y)/x,y in Z,x^(2)+y^(2)<...

[" 38.If "R={(x,y)/x,y in Z,x^(2)+y^(2)<=4}" is a relation in "Z," then domain of "R" is "],[[" 1) "{0,1,2}," 2) "{0,-1,-2}," 3) "{-2,-1,0,1,2}," A) "{0,1,2}]]

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