zero of a ring is unique. ans
true/false
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Step-by-step explanation:
For (A), when looking at (x+y)2, it has x+y=(x+y)2=x2+xy+yx+y2
and then yx+xy=0, and from 2x=4x, therefore 2x=0. how this play a role here
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It answer is true .................
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