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If R is a Symmetric Relation on a Set A, Then Write a Relation Between R and R−1.

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प्रश्न

If R is a symmetric relation on a set A, then write a relation between R and R−1.

योग
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उत्तर

Here, R is symmetric on the set A.

Let (a, b∈ R

⇒ (b, a∈ R                  [Since R is symmetric]

⇒ (a, b) R1               [By definition of inverse relation]

⇒ R R1

Let (x, y) R1

⇒ (y, x∈ R                     [By definition of inverse relation]

⇒ (x, y∈ R                    [Since R is symmetric]

 R1 R

Thus, R1

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अध्याय 1: Relations - Exercise 1.3 [पृष्ठ ३०]

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आर.डी. शर्मा Mathematics Volume 1 and 2 [English] Class 12
अध्याय 1 Relations
Exercise 1.3 | Q 6 | पृष्ठ ३०

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