संबंध \(R=\{(x,y):y^2=x,\ x\in{1,4,9},\ y\in{-3,-2,-1,1,2,3}\}\) को \(X=\{1,4,9\}\) से \(Y=\{-3,-2,-1,1,2,3\}\) में देखें। यह फलन क्यों नहीं है?
Consider the relation \(R=\{(x,y):y^2=x,\ x\in{1,4,9},\ y\in{-3,-2,-1,1,2,3}\}\) from \(X=\{1,4,9\}\) to \(Y=\{-3,-2,-1,1,2,3\}\). Why is it not a function?
Explanation opens after your attempt
B. क्योंकि (4) की दो छवियां हैंBecause (4) has two images
Concept
For (4), both (y=2) and (y=-2) occur. Two images for one input reject a function.
Why this answer is correct
The correct answer is B. क्योंकि (4) की दो छवियां हैं / Because (4) has two images. For (4), both (y=2) and (y=-2) occur. Two images for one input reject a function.
Exam Tip
(4) के लिए (y=2) और (y=-2) दोनों मिलते हैं। एक इनपुट की दो छवियां फलन को अस्वीकार कर देती हैं।
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