यदि \(f:{1,2,3}\to{7,8}\) को (f(x)=7) सभी (x) के लिए परिभाषित किया गया है, तो (f) का परिसर क्या है?
If \(f:{1,2,3}\to{7,8}\) is defined by (f(x)=7) for all (x), what is the range of (f)?
Explanation opens after your attempt
A. ({7})
Concept
Every domain element has image (7), so the range is ({7}). In exams, do not write an unattained codomain element in the range.
Why this answer is correct
The correct answer is A. ({7}). Every domain element has image (7), so the range is ({7}). In exams, do not write an unattained codomain element in the range.
Exam Tip
हर प्रांत तत्व की छवि (7) है इसलिए परिसर ({7}) है। परीक्षा में अप्राप्त सहप्रांत तत्व को परिसर में न लिखें।
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