किस विकल्प में (R) \(A=\{1,2,3\}\) से \(B=\{4,5,6\}\) में फलन है, लेकिन \(R^{-1}\) फलन नहीं है?
In which option is (R) a function from \(A=\{1,2,3\}\) to \(B=\{4,5,6\}\), but \(R^{-1}\) is not a function?
Explanation opens after your attempt
Correct Answer
B. ({(1,4),(2,4),(3,5)})
Concept
In option (B), every input has one image, so (R) is a function. In the inverse relation, (4) has two images (1) and (2).
Why this answer is correct
The correct answer is B. ({(1,4),(2,4),(3,5)}). In option (B), every input has one image, so (R) is a function. In the inverse relation, (4) has two images (1) and (2).
Exam Tip
विकल्प (B) में हर इनपुट की एक छवि है, इसलिए (R) फलन है। उल्टे संबंध में (4) की दो छवियां (1) और (2) होंगी।
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