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Let r and s be rings and define rx s = {(r, s) |ter, se s} with addition and multiplication defined componentwise on rx s which thus makes rx sa ring. (i) if r and s are both commutative, then prove that rx s is also commutative (ii) if r and s both have identity, then prove that rx s also has an identity
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Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles
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Let r and s be rings and define rx s = {(r, s) |ter, se s} with addition and multiplication defined...
Mathematics, 23.04.2020 04:25