If A={-1,1} then find A×A×A
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3
if -1+1 - 0 - 0 answer is zero
Rushabh63:
Wrong...
see my answer
Answered by
8
A×A×A=(-1,1)×(-1,1)×(-1,1)
=( (-1,-1,-1),(-1,-1,1)
= (-1,1,-1) , (-1,1,1)
= (1,-1,-1) , (1,-1,1)
= (1,1,-1) , (1,1,1) )
=( (-1,-1,-1),(-1,-1,1)
= (-1,1,-1) , (-1,1,1)
= (1,-1,-1) , (1,-1,1)
= (1,1,-1) , (1,1,1) )
wrong
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