यदि (p(x)=(a-4)x-5+3x-2-7) को ठीक द्विघात बहुपद बनाना हो, तो (a) का मान क्या होगा?
If (p(x)=(a-4)x-5+3x-2-7) is to be exactly a quadratic polynomial, what is the value of (a)?
Explanation opens after your attempt
B. (4)
Concept
For exactly quadratic, the coefficient of \(x^5\) must be zero. From (a-4=0), (a=4).
Why this answer is correct
The correct answer is B. (4). For exactly quadratic, the coefficient of \(x^5\) must be zero. From (a-4=0), (a=4).
Exam Tip
ठीक द्विघात के लिए \(x^5\) का गुणांक शून्य होना चाहिए। (a-4=0) से (a=4) मिलता है।
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