associative/commutative properties

label Algebra
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Let R2 denote the set {(a, b) : a, b (-- R}. define  operation x : R2 x R2 ⇥ R2 by (a, b) x (c, d) = (a + c, 2 · b + 2 · d), 

1. is operation x is associative or not.

2. is operation X is commutative or not

explain

Feb 20th, 2015

commutative property

associative property doesnt distribute the factors.

best answer me please

Feb 20th, 2015

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Feb 20th, 2015
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Feb 20th, 2015
Jun 24th, 2017
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