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