यदि (x=4) समीकरण \(x^2+sx-32=0\) का मूल है, तो (s) का मान क्या होगा?
If (x=4) is a root of \(x^2+sx-32=0\), what is the value of (s)?
Explanation opens after your attempt
A. (4)
Concept
Putting (x=4) gives (16+4s-32=0), so (s=4). When a root is given, substitute directly.
Why this answer is correct
The correct answer is A. (4). Putting (x=4) gives (16+4s-32=0), so (s=4). When a root is given, substitute directly.
Exam Tip
(x=4) रखने पर (16+4s-32=0) मिलता है, इसलिए (s=4) है। मूल दिया हो तो सीधा प्रतिस्थापन करें।
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