Class 12 Mathematics - Relations and Functions - Relations Expert Quiz

Level 26 • 1/50 questions • 25 seconds per question.

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Answered 0/1 Correct 0 Time 00:25

यदि \(A=\{1,2,3,4\}\) और \(B=\{p,q,r\}\), तो निम्न में से कौन-सा फलन \(A\to B\) आच्छादक है?

If \(A=\{1,2,3,4\}\) and \(B=\{p,q,r\}\), which of the following functions \(A\to B\) is onto?

Explanation opens after your attempt
Correct Answer

A. ({(1,p),(2,q),(3,r),(4,p)})

Step 1

Concept

For onto, all (p,q,r) must appear among the images.

Step 2

Why this answer is correct

In the first option, (p,q,r) all occur.

Step 3

Exam Tip

In mapping-list questions, form the image set and compare it with the codomain. चरण 1: आच्छादक होने के लिए (p,q,r) तीनों चित्रों में आने चाहिए। चरण 2: पहले विकल्प में (p,q,r) सभी प्राप्त हो रहे हैं। चरण 3: सूची वाले प्रश्नों में चित्रों का समुच्चय बनाकर तुरंत मिलान करें।

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