यदि (4) समीकरण \(2x^2-9x+n=0\) का मूल है तो (n) का मान क्या है?
If (4) is a root of \(2x^2-9x+n=0\), what is the value of (n)?
Explanation opens after your attempt
B. (4)
Concept
Putting (x=4) gives (32-36+n=0), so (n=4). Calculate each term separately.
Why this answer is correct
The correct answer is B. (4). Putting (x=4) gives (32-36+n=0), so (n=4). Calculate each term separately.
Exam Tip
(x=4) रखने पर (32-36+n=0) इसलिए (n=4)। गणना में हर पद अलग अलग निकालें।
Login to save your score, XP, coins and progress.
