Mathematics, 05.07.2019 01:10 asteinberg6975
4. (4 points) determine if the following are groups. if so, prove it; otherwise explain why not (a) let m be the set of symmetric 2 x 2 real matrices, with matrix multiplication (b) let qy denote the set of rational numbers which when expressed in lowest terms have denominators, and let the binary operation be addition. for the purposes of this even problem, represnt 0 as
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4. (4 points) determine if the following are groups. if so, prove it; otherwise explain why not (a)...
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