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