यदि \(A=\{p,q,r\}\) और \(B=\{0,1\}\) हों, तो (A) से (B) में कुल फलनों की संख्या क्या होगी?
If \(A=\{p,q,r\}\) and \(B=\{0,1\}\), what is the number of functions from (A) to (B)?
Explanation opens after your attempt
Correct Answer
C. (8)
Concept
Here (n(A)=3) and (n(B)=2), so total functions are \(2^3=8\). In exams, the base is the number of elements in the codomain.
Why this answer is correct
The correct answer is C. (8). Here (n(A)=3) and (n(B)=2), so total functions are \(2^3=8\). In exams, the base is the number of elements in the codomain.
Exam Tip
यहां (n(A)=3) और (n(B)=2) है इसलिए कुल फलन \(2^3=8\) हैं। परीक्षा में आधार सहप्रांत के तत्वों की संख्या होती है।
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