यदि \(A=\{1,2\}\) और \(B=\{3,4,5,6\}\) हों, तो (A) से (B) में कुल फलनों की संख्या क्या है?
If \(A=\{1,2\}\) and \(B=\{3,4,5,6\}\), what is the total number of functions from (A) to (B)?
Explanation opens after your attempt
A. \(4^2=16\)
Concept
There are (4) choices for each of the (2) elements of (A), so there are \(4^2=16\) functions. In exams, the exponent is the number of domain elements.
Why this answer is correct
The correct answer is A. \(4^2=16\). There are (4) choices for each of the (2) elements of (A), so there are \(4^2=16\) functions. In exams, the exponent is the number of domain elements.
Exam Tip
(A) के (2) तत्वों के लिए (B) की (4) पसंद हैं इसलिए \(4^2=16\) फलन हैं। परीक्षा में घात प्रांत के तत्वों की संख्या होती है।
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