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Which of the following is not true?

  • a)
    The order of the subgroup of a finite group divides the order of the group

  • b)
    Every group of infinite order is cyclic

  • c)
    Every cyclic group is abelian

  • d)
    If k is a divisor of the order of a group G, then G must have a subsrouo of order k

Correct answer is option 'D'. Can you explain this answer?
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Which of the following is not true?a)The order of the subgroup of a fi...
α = (1 3) (2 5 4)
|order of (1 3) = 2
order of (2 5 4) = 3
order of α = 1.c.m. of 2 and 3 = 6
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Which of the following is not true?a)The order of the subgroup of a fi...
Explanation:

Statement d: If k is a divisor of the order of a group G, then G must have a subgroup of order k
- This statement is not true. It is possible for a group to have a divisor of its order that does not correspond to a subgroup of that order.
- For example, consider the group of integers under addition. The order of this group is infinite. However, it does not have a subgroup of order 2, even though 2 is a divisor of infinity.
- Therefore, it is not always the case that if k is a divisor of the order of a group G, then G must have a subgroup of order k.
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Community Answer
Which of the following is not true?a)The order of the subgroup of a fi...
α = (1 3) (2 5 4)
|order of (1 3) = 2
order of (2 5 4) = 3
order of α = 1.c.m. of 2 and 3 = 6
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Which of the following is not true?a)The order of the subgroup of a finite group divides the order of the groupb)Every group of infinite order is cyclicc)Every cyclic group is abeliand)If k is a divisor of the order of a group G, then G must have a subsrouo of order kCorrect answer is option 'D'. Can you explain this answer?
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