यदि \(f:{1,2,3,4}\to{1,3,5,7}\) को (f(x)=2x-1) से परिभाषित किया गया है, तो (f(4)) क्या है?
If \(f:{1,2,3,4}\to{1,3,5,7}\) is defined by (f(x)=2x-1), what is (f(4))?
Explanation opens after your attempt
Correct Answer
C. (7)
Concept
\(f(4)=2\times 4-1=7\). In exams, multiply first and then subtract.
Why this answer is correct
The correct answer is C. (7). \(f(4)=2\times 4-1=7\). In exams, multiply first and then subtract.
Exam Tip
\(f(4)=2\times 4-1=7\) है। परीक्षा में पहले गुणा करें और फिर घटाएं।
Login to save your score, XP, coins and progress.