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- Exercise 2.8 (Solutions)
- e at MathCity.org <grid><col sm="6"> <panel> **Question # 1** Operation $\oplus$ performed on the two-mem... aw so it is an abelian group. </panel> <panel> **Question # 2** The operation $\oplus$ as performed on the ... Hence commutative law holds. </panel> <panel> **Question # 3 (i)** Determine whether or not the set of ra... l number is not a group w.r.t to “$\times $”. **Question # 3 (ii)** Determine whether or not the set of ra