a,(-a)^2=a^2 This is true or false?

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25-08-2017
Mathematics

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a,(-a)^2=a^2 This is true or false?

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jdoe0001 jdoe0001 · Answer 1 · 2017-08-25T00:45:54+02:00

jdoe0001 jdoe0001

25-08-2017

[tex]\bf (-a)^2\implies (-a)(-a)\impliedby \textit{recall \underline{minus} times \underline{minus} is \underline{plus}} \\\\\\ -1(a)\cdot -1(a)\implies (-1\cdot -1)(a)(a)\implies +1(a)(a)\implies a^2[/tex]

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