यदि \(x^2+sx+18=0\) के मूल (-3) और (-6) हैं, तो (s) का मान क्या है?
If the roots of \(x^2+sx+18=0\) are (-3) and (-6), what is the value of (s)?
Explanation opens after your attempt
Correct Answer
A. (9)
Concept
The sum of roots is (-9), and in \(x^2+sx+18=0\) the sum is (-s). Therefore (s=9).
Why this answer is correct
The correct answer is A. (9). The sum of roots is (-9), and in \(x^2+sx+18=0\) the sum is (-s). Therefore (s=9).
Exam Tip
मूलों का योग (-9) है और \(x^2+sx+18=0\) में योग (-s) होता है। इसलिए (s=9) है।
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