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The Number of Commutative Binary Operations that Can Be Defined on a Set of 2 Elements is (A) 8 (B) 6 (C) 4 (D) 2 - Mathematics

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प्रश्न

The number of commutative binary operations that can be defined on a set of 2 elements is ____________ .

विकल्प

  • 8

  • 6

  • 4

  • 2

MCQ
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उत्तर

2

The number of commutative binary operations on a set of n elements is \[n^\frac{n\left( n - 1 \right)}{2} \] Therefore,
Number of commutative binary operations on a set of 2 elements = \[2^\frac{2\left( 2 - 1 \right)}{2} \]
                           \[ = 2^1 \]
                           \[ = 2\]

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अध्याय 3: Binary Operations - Exercise 3.7 [पृष्ठ ३९]

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आरडी शर्मा Mathematics [English] Class 12
अध्याय 3 Binary Operations
Exercise 3.7 | Q 29 | पृष्ठ ३९

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