यदि \(A=\{1,2,3\}\) और \(B=\{4,5\}\) हैं, तो कौन-सा संबंध (A) से (B) में फलन है?
If \(A=\{1,2,3\}\) and \(B=\{4,5\}\), which relation from (A) to (B) is a function?
Explanation opens after your attempt
A. \(R=\{(1,4),(2,4),(3,5)\}\)
Concept
Every \(x\in A\) has exactly one image in (B). In exams, first check presence and uniqueness for each domain element.
Why this answer is correct
The correct answer is A. \(R=\{(1,4),(2,4),(3,5)\}\). Every \(x\in A\) has exactly one image in (B). In exams, first check presence and uniqueness for each domain element.
Exam Tip
हर \(x\in A\) की ठीक एक छवि (B) में है। परीक्षा में पहले domain के हर element की उपस्थिति और uniqueness जांचें।
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