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If (x^2+kx+16) is a perfect square and (k) is positive, what is the value of (k)?(x^2+kx+16) पूर्ण वर्ग हो और (k) धनात्मक हो तो (k) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (8)correct middle coefficient / (8) सही मध्य गुणांक
(16=4^2), and in a perfect square the middle term is (2\cdot x\cdot4=8x). In exams double the root of the constant term.(16=4^2) और पूर्ण वर्ग में मध्य पद (2\cdot x\cdot4=8x) होगा। परीक्षा में स्थिर पद की जड़ को दोगुना करें।
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