\(9x^2-mx+16\) पूर्ण वर्ग है। (m) का मान क्या होगा?
\(9x^2-mx+16\) is a perfect square. What will be the value of (m)?
Explanation opens after your attempt
C. (24)
Concept
(9x-2=(3x)2) and \(16=4^2\), so the middle coefficient is \(2\cdot3\cdot4=24\). In exams, view the negative sign and coefficient separately.
Why this answer is correct
The correct answer is C. (24). (9x-2=(3x)2) and \(16=4^2\), so the middle coefficient is \(2\cdot3\cdot4=24\). In exams, view the negative sign and coefficient separately.
Exam Tip
(9x-2=(3x)2) और \(16=4^2\), इसलिए मध्य गुणांक \(2\cdot3\cdot4=24\) है। परीक्षा में ऋण चिन्ह अलग और गुणांक अलग देखें।
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