यदि \(A=\{1\}\) और \(B=\{2,3,4\}\) है तो (A) से (B) में कुल कितने फलन बनेंगे?

If \(A=\{1\}\) and \(B=\{2,3,4\}\), how many functions can be formed from (A) to (B)?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

One domain element has (3) choices in (B). Therefore the total number of functions is \(3^1=3\).

Step 2

Why this answer is correct

The correct answer is A. (3). One domain element has (3) choices in (B). Therefore the total number of functions is \(3^1=3\).

Step 3

Exam Tip

एक प्रांत तत्व के लिए (B) में (3) विकल्प हैं। इसलिए कुल \(3^1=3\) फलन हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1\}\) और \(B=\{2,3,4\}\) है तो (A) से (B) में कुल कितने फलन बनेंगे? / If \(A=\{1\}\) and \(B=\{2,3,4\}\), how many functions can be formed from (A) to (B)?

Correct Answer: A. (3). Explanation: एक प्रांत तत्व के लिए (B) में (3) विकल्प हैं। इसलिए कुल \(3^1=3\) फलन हैं। / One domain element has (3) choices in (B). Therefore the total number of functions is \(3^1=3\).

Which concept should I revise for this Mathematics MCQ?

One domain element has (3) choices in (B). Therefore the total number of functions is \(3^1=3\).

What exam hint can help solve this Mathematics question?

एक प्रांत तत्व के लिए (B) में (3) विकल्प हैं। इसलिए कुल \(3^1=3\) फलन हैं।