Concept-wise Practice

easy question MCQ Questions for Class 12

easy question se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with easy question.

समुच्चय \(A=\{1,2\}\) पर \(R=\{(1,1),(2,2),(1,2)\}\) सममित है या नहीं?

Is \(R=\{(1,1),(2,2),(1,2)\}\) symmetric on \(A=\{1,2\}\)?

Explanation opens after your attempt
Correct Answer

A. नहींNo

Step 1

Concept

The reverse of ((1,2)), namely ((2,1)), should be present.

Step 2

Why this answer is correct

Since ((2,1)) is missing, the relation is not symmetric.

Step 3

Exam Tip

Do not get confused by self-pairs; check reverse non-self pairs. चरण 1: ((1,2)) का उल्टा ((2,1)) होना चाहिए। चरण 2: संबंध में ((2,1)) नहीं है, इसलिए सममितता नहीं है। चरण 3: स्वयं युग्मों से भ्रमित न हों, उल्टे अलग युग्म देखें।

Open Question Page
Ask Friends