यदि \(A=\{1,2,3,4,5,6\}\) और \(B=\{0,1\}\) हों, तो (A) से (B) में ऐसे कितने फलन हैं जिनमें ठीक (3) इनपुटों की छवि (1) हो?
If \(A=\{1,2,3,4,5,6\}\) and \(B=\{0,1\}\), how many functions from (A) to (B) have exactly (3) inputs with image (1)?
Explanation opens after your attempt
C. (20)
Concept
Exactly three of the six inputs must be mapped to (1). The number is \(\binom{6}{3}=20\).
Why this answer is correct
The correct answer is C. (20). Exactly three of the six inputs must be mapped to (1). The number is \(\binom{6}{3}=20\).
Exam Tip
छह इनपुटों में से ठीक तीन को (1) पर भेजना है। संख्या \(\binom{6}{3}=20\) है।
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