SOLUTION: 1)u×u>=0 and u×u=0 if and only if u=0 prove theorem?
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Question 733713: 1)u×u>=0 and u×u=0 if and only if u=0 prove theorem?
Answer by lynnlo(4176) (Show Source): You can put this solution on YOUR website!
U<0/U>0=0
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