\(25x^2+mx+36\) पूर्ण वर्ग है और (m) धनात्मक है। (m) का मान क्या होगा?
\(25x^2+mx+36\) is a perfect square and (m) is positive. What will be the value of (m)?
Explanation opens after your attempt
B. (60)
Concept
(25x-2=(5x)2) and \(36=6^2\), so the middle term is \(2\cdot5x\cdot6=60x\). In exams, multiply twice the two square roots.
Why this answer is correct
The correct answer is B. (60). (25x-2=(5x)2) and \(36=6^2\), so the middle term is \(2\cdot5x\cdot6=60x\). In exams, multiply twice the two square roots.
Exam Tip
(25x-2=(5x)2) और \(36=6^2\), इसलिए मध्य पद \(2\cdot5x\cdot6=60x\) है। परीक्षा में दोनों वर्गमूलों का दुगुना गुणन करें।
Login to save your score, XP, coins and progress.
