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anyone help me in maths its urgent of chapter relation

Answer» 9 elements A×A some order pair (-1,0) (0,1).Now we notice order pair that -1,0,1. Given elements are (-1,0)(0,1).A has three elements.A={-1,0,1}A×A = { -1,0,1}×{-1,0,1}Hence, remaining elements of A×A--{(-1,0) (0,-1) (0,0) (1,-1) (-1,-1) (1,0) (1,1)}.????
in last how remaining elements is find
expercise 2.1 question no 10 i cant understand it pls you explain me
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