Which of the following statements are true?
I. The set of all odd integers is a monoid under multiplication.
II. The set of all complex number is a group under multiplication
III. The set of all integers under the operation * given by a * b = a+b-ab is a monoid
IV. Zs under symmetric difference defined by
A B = (A-B) ∪ (B-A) is an abelian group
| A. | I and II |
| B. | I, III and IV |
| C. | I, II and III |
| D. | I, II and IV |
Answer : B Explanation : |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
