यदि \(f:{1,2,3,4}\to{1,2,3}\) और \(f=\{(1,1),(2,2),(3,3),(4,3)\}\) हो, तो कौन-सा कथन सही है?

If \(f:{1,2,3,4}\to{1,2,3}\) and \(f=\{(1,1),(2,2),(3,3),(4,3)\}\), which statement is correct?

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Correct Answer

A. यह फलन हैIt is a function

Step 1

Concept

Every domain element (1,2,3,4) has exactly one image. The image (3) appearing twice is allowed.

Step 2

Why this answer is correct

The correct answer is A. यह फलन है / It is a function. Every domain element (1,2,3,4) has exactly one image. The image (3) appearing twice is allowed.

Step 3

Exam Tip

हर प्रांत तत्व (1,2,3,4) की ठीक एक छवि है। छवि (3) का दो बार आना स्वीकार्य है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(f:{1,2,3,4}\to{1,2,3}\) और \(f=\{(1,1),(2,2),(3,3),(4,3)\}\) हो, तो कौन-सा कथन सही है? / If \(f:{1,2,3,4}\to{1,2,3}\) and \(f=\{(1,1),(2,2),(3,3),(4,3)\}\), which statement is correct?

Correct Answer: A. यह फलन है / It is a function. Explanation: हर प्रांत तत्व (1,2,3,4) की ठीक एक छवि है। छवि (3) का दो बार आना स्वीकार्य है। / Every domain element (1,2,3,4) has exactly one image. The image (3) appearing twice is allowed.

Which concept should I revise for this Mathematics MCQ?

Every domain element (1,2,3,4) has exactly one image. The image (3) appearing twice is allowed.

What exam hint can help solve this Mathematics question?

हर प्रांत तत्व (1,2,3,4) की ठीक एक छवि है। छवि (3) का दो बार आना स्वीकार्य है।