संबंध \(R=\{(x,y):x+y=7,\ x\in{1,2,3,4},\ y\in{3,4,5,6}\}\) के बारे में सही कथन कौन सा है?
Which statement is correct about \(R=\{(x,y):x+y=7,\ x\in{1,2,3,4},\ y\in{3,4,5,6}\}\)?
Explanation opens after your attempt
Correct Answer
A. यह फलन है और परिसर ({3,4,5,6}) हैIt is a function and range is ({3,4,5,6})
Concept
For every (x), (y=7-x) is unique and lies in the given codomain. In finite sets check the image of every input.
Why this answer is correct
The correct answer is A. यह फलन है और परिसर ({3,4,5,6}) है / It is a function and range is ({3,4,5,6}). For every (x), (y=7-x) is unique and lies in the given codomain. In finite sets check the image of every input.
Exam Tip
हर (x) के लिए (y=7-x) अद्वितीय है और दिए गए सहप्रांत में है। सीमित समुच्चय में सभी इनपुटों की छवि जांचें।
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