यदि (f(a)=b) है, तो (a) को (b) का क्या कहा जाता है?
If (f(a)=b), what is (a) called for (b)?
Explanation opens after your attempt
A. पूर्वछविPreimage
Concept
In (f(a)=b), (a) is the preimage and (b) is the image. In exams, do not reverse these two terms.
Why this answer is correct
The correct answer is A. पूर्वछवि / Preimage. In (f(a)=b), (a) is the preimage and (b) is the image. In exams, do not reverse these two terms.
Exam Tip
(f(a)=b) में (a) पूर्वछवि और (b) छवि है। परीक्षा में इन दोनों शब्दों को उल्टा न करें।
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