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OpenStudy (anonymous):
let i=-3,-2,-1,0,1,2,3... a=0,0,0,1,-1,0,0,0... b=0,0,1,-1,0,0,0... find a*b and a^-1
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OpenStudy (anonymous):
a*b= 0,0,0-1,0,0,0,
OpenStudy (anonymous):
i just guessed..haha
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