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JEE Mains · Maths · STD 12 - 1. relation and function

ગણ \(\{a, b, c, d\}\) પરનું સંબંધ \(R = \{(a, b), (b, c), (b, d)\}\) સામ્ય સંબંંધ બને તે માટે ઓછામાં ઓછી સંખ્યામાં ઉમેરવામા આવતા ધટકોની સંખ્યા \(............\) છે.

  1. A \(11\)
  2. B \(12\)
  3. C \(19\)
  4. D \(13\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(13\)

Step-by-step Solution

Detailed explanation

Given \(R=\{(a, b),(b, c),(b, d)\}\) In order to make it equivalence relation as per given set, \(R\) must be \(\{(a, a),(b, b),(c, c),(d, d),(a, b),(b, a),(b, c),(c, b)\), \((b, d),(d, b),(a, c),(a, d),(c, d),(d, c),(c, a),(d, a)\}\) There already given so \(13\) more to be…
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