यदि \(A=\{a,b,c,d\}\) और \(B=\{0,1\}\) हैं, तो (A) से (B) तक कुल कितने फलन बन सकते हैं?
If \(A=\{a,b,c,d\}\) and \(B=\{0,1\}\), how many functions can be formed from (A) to (B)?
Explanation opens after your attempt
A. \(2^4=16\)
Concept
Each of the (4) elements of (A) has (2) choices in (B), so total functions are \(2^4=16\). Remember the formula: functions from (A) to (B) \(=|B|^{|A|}\).
Why this answer is correct
The correct answer is A. \(2^4=16\). Each of the (4) elements of (A) has (2) choices in (B), so total functions are \(2^4=16\). Remember the formula: functions from (A) to (B) \(=|B|^{|A|}\).
Exam Tip
(A) के हर (4) element के लिए (B) में (2) choices हैं, इसलिए कुल \(2^4=16\) फलन हैं। सूत्र याद रखें: (A) से (B) तक फलन \(=|B|^{|A|}\)।
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