यदि \(f:{1,2,3,4}\to{1,2,3,4}\) और (f(x)=5-x) है, तो (f(2)) क्या है?
If \(f:{1,2,3,4}\to{1,2,3,4}\) and (f(x)=5-x), what is (f(2))?
Explanation opens after your attempt
C. (3)
Concept
(f(2)=5-2=3). In exams, substitute the input directly into the given rule.
Why this answer is correct
The correct answer is C. (3). (f(2)=5-2=3). In exams, substitute the input directly into the given rule.
Exam Tip
(f(2)=5-2=3) है। परीक्षा में दिए गए नियम में इनपुट सीधे रखें।
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