यदि (f(x)=x-1) और \(A=\{2,3,4\}\) है तो (f(A)) क्या है?
If (f(x)=x-1) and \(A=\{2,3,4\}\), what is (f(A))?
Explanation opens after your attempt
A. ({1,2,3})
Concept
Applying the rule to (2,3,4) gives (1,2,3). The set of obtained values is (f(A)).
Why this answer is correct
The correct answer is A. ({1,2,3}). Applying the rule to (2,3,4) gives (1,2,3). The set of obtained values is (f(A)).
Exam Tip
(2,3,4) पर नियम लगाने से (1,2,3) मिलते हैं। प्राप्त मानों का समुच्चय (f(A)) है।
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