यदि \(f:{1,2,3,4}\to{1,4,9,16}\) और (f(x)=x-2) है, तो (9) की पूर्वछवि क्या है?

If \(f:{1,2,3,4}\to{1,4,9,16}\) and (f(x)=x-2), what is the preimage of (9)?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

\(3^2=9\), so the preimage of (9) is (3). In exams, find the domain element associated with the image.

Step 2

Why this answer is correct

The correct answer is C. (3). \(3^2=9\), so the preimage of (9) is (3). In exams, find the domain element associated with the image.

Step 3

Exam Tip

\(3^2=9\) इसलिए (9) की पूर्वछवि (3) है। परीक्षा में छवि से संबंधित प्रांत तत्व खोजें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(f:{1,2,3,4}\to{1,4,9,16}\) और (f(x)=x-2) है, तो (9) की पूर्वछवि क्या है? / If \(f:{1,2,3,4}\to{1,4,9,16}\) and (f(x)=x-2), what is the preimage of (9)?

Correct Answer: C. (3). Explanation: \(3^2=9\) इसलिए (9) की पूर्वछवि (3) है। परीक्षा में छवि से संबंधित प्रांत तत्व खोजें। / \(3^2=9\), so the preimage of (9) is (3). In exams, find the domain element associated with the image.

Which concept should I revise for this Mathematics MCQ?

\(3^2=9\), so the preimage of (9) is (3). In exams, find the domain element associated with the image.

What exam hint can help solve this Mathematics question?

\(3^2=9\) इसलिए (9) की पूर्वछवि (3) है। परीक्षा में छवि से संबंधित प्रांत तत्व खोजें।