If (G, .) is a group such that a2 = e, ∀ a ∈ G, then G is
| A. | semi group |
| B. | abelian group |
| C. | non-abelian group |
| D. | none of these |
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Option: B Explanation : Click on Discuss to view users comments. |
The inverse of - i in the multiplicative group,{1, - 1,i,- i } is
| A. | 1 |
| B. | -1 |
| C. | i |
| D. | -i |
|
Option: C Explanation : Click on Discuss to view users comments. |
The set of integers Z with the binary operation "1" defined as a*b =a +b+1 for a, b ∈ Z, is a group. The identity element of this group is
| A. | 0 |
| B. | 1 |
| C. | -1 |
| D. | 12 |
|
Option: C Explanation : Click on Discuss to view users comments. |
