Which one of the set is not closed under the binaary operation of subtraction

1. N
2. Z
3. Q
4. R
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Answer: A
Explanation:
• N/A
40 0 Complains

The set of integers Z is closed undrer the binary operation ……….

1. Addition
2. Subtraction
3. Multiplication
4. All
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Answer: D
Explanation:
• N/A
10 0 Complains

The set of integers Z form a group under the binary operation………

1. Addition
2. Subtraction
3. Multiplication
4. All
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Answer: A
Explanation:
• N/A
5 0 Complains

Which one of the set is closed under the binaary operations of '+','-',`xx`,

1. N
2. Z
3. P
4. Q
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Answer: D
Explanation:
• N/A
2 0 Complains

Which of following set is not closed under the binary operation of division

1. Z
2. Q
3. R
4. All
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Answer: D
Explanation:
• N/A
3 2 Complains

The set of rational numbers Q form a group under……….

1. Addition

2. Subtraction

3. Multiplication

4. All

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Answer: A
Explanation:
• N/A
21 9 Complains

Non-zero elements of set of rational numbsers Q form a group under …...

1. Addition
2. Subtraction
3. Multiplication
4. All
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Answer: C
Explanation:
• N/A
4 0 Complains

The set S = {1,-1} form a group under ……..

1. Addition
2. Subtraction
3. Multiplication
4. All
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Answer: C
Explanation:
• N/A
6 1 Complains

The order of group S = {1,-1} is ………

1. -1
2. 0
3. 1
4. 2
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Answer: D
Explanation:
• N/A
22 0 Complains

The order of element '1' in S = {1,-1} is ………

1. -1
2. 0
3. 1
4. 2
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Answer: C
Explanation:
• `a^n=e` ,e=1
6 2 Complains