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Is m =1? 1)m^3=m 2)m^4=1

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Is m =1? 1)m^3=m 2)m^4=1 [#permalink] New post 12 Aug 2007, 14:46
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Is m =1?
1)m^3=m
2)m^4=1
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Re: DS - easy one [#permalink] New post 12 Aug 2007, 15:12
fresinha12 wrote:
Is m =1?
1)m^3=m
2)m^4=1


i get E for the answer

1)m^3=m
m could be 1, or -1
insufficient

2)m^4=1
again m could be 1 or -1
insufficient
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Re: DS - easy one [#permalink] New post 12 Aug 2007, 18:50
E too but little addition

1: m could be 0, -1 and 1.
2: m could be -1 or 1.

nsffff.
Re: DS - easy one   [#permalink] 12 Aug 2007, 18:50
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