यदि \(A=\{1,2,3\}\), \(B=\{1,4,9,16\}\) और (f(x)=x-2) हो, तो कौन-सा तत्व सहप्रांत में है पर परिसर में नहीं है?
If \(A=\{1,2,3\}\), \(B=\{1,4,9,16\}\), and (f(x)=x-2), which element is in the codomain but not in the range?
Explanation opens after your attempt
Correct Answer
D. (16)
Concept
The range is ({1,4,9}), so (16) is in the codomain but not in the range. In exams, keep codomain and range separate.
Why this answer is correct
The correct answer is D. (16). The range is ({1,4,9}), so (16) is in the codomain but not in the range. In exams, keep codomain and range separate.
Exam Tip
परिसर ({1,4,9}) है, इसलिए (16) सहप्रांत में है पर परिसर में नहीं। परीक्षा में सहप्रांत और परिसर को अलग रखें।
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