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Subjects

Mathematics

Binary operations

In Class 12 Mathematics, this topic introduces binary operations as functions that combine two elements of a set to produce another element of the same set. Within the chapter Relations and Functions, students learn to identify whether an operation is well-defined and closed, represent it through tables or algebraic rules, and examine key properties such as commutativity, associativity, identity elements, and inverses. Examples involving familiar number systems help connect these ideas with broader function concepts.

Hard · Level 6 · 25 questions

TOPIC PRACTICE

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Up to 25 questions from this page. Select your focus, then start.

25 questions

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  1. For every real (k)
  2. Only for (k=0)
  3. Only for (k=1)
  4. For no value of (k)
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  1. (-p-2c)
  2. (-p-c)
  3. (p+2c)
  4. (c-p)
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  1. (1)
  2. (0)
  3. (-1)
  4. No such element
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  1. It is binary but not commutative
  2. It is not binary
  3. It is commutative
  4. Its two-sided identity is (1)
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  1. (-7)
  2. (-5)
  3. (7)
  4. (0)
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  1. (2)
  2. (0)
  3. (-2)
  4. No such element
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  1. (7)
  2. (3)
  3. (-7)
  4. (5)
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  1. (0)
  2. (1)
  3. Both (0) and (1)
  4. No such element
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  1. (1)
  2. (0)
  3. Both (0) and (1)
  4. No such element
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  1. (1)
  2. (0)
  3. Both (0) and (1)
  4. No such element
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  1. (-1)
  2. (0)
  3. (1)
  4. No such element
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  1. ((1-a)(1-b))
  2. (ab)
  3. (a+b)
  4. (1+a+b)
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  1. Because (1-(a*b)=(1-a)(1-b)\neq0)
  2. Because (a*b=1) always
  3. Because (a*b=0) always
  4. Because (a=b) is necessary
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  1. It is both associative and commutative
  2. It is only commutative
  3. It is only associative
  4. It is neither associative nor commutative
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  1. It is not associative
  2. It is associative
  3. It is not closed
  4. Its identity is (0)
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  1. No such element
  2. (0)
  3. (1)
  4. (-1)
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  1. (0)
  2. (1)
  3. (2)
  4. (3)
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  1. (4)
  2. (3)
  3. (1)
  4. (6)
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  1. (3)
  2. (2)
  3. (4)
  4. (1)
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  1. (7)
  2. (-5)
  3. (11)
  4. (-7)
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  1. Identity element does not exist
  2. Identity is (0)
  3. Identity is (1)
  4. Identity is (\frac{1}{2})
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  1. (3)
  2. (2)
  3. (4)
  4. (-3)
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  1. (5)
  2. (4)
  3. (6)
  4. (8)
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  1. (\frac{3}{5})
  2. (-\frac{3}{5})
  3. (5)
  4. No such element
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  1. (\frac{1}{2})
  2. (0)
  3. (1)
  4. No such element

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