Mathematics
Mathematics, 03.11.2019 15:31, havennn

We have a = {a+b√2 | a, b∈z}. prove that a is a commutative ring in relation with addition and multiplication of real numbers.

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We have a = {a+b√2 | a, b∈z}. prove that a is a commutative ring in relation with addition and multi...

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