यदि (p(x)=(k-3)x-4+2x-2-5) को (x) में ठीक द्विघात बहुपद होना है, तो (k) का मान क्या होना चाहिए?
If (p(x)=(k-3)x-4+2x-2-5) must be exactly a quadratic polynomial in (x), what should be the value of (k)?
Explanation opens after your attempt
A. (3)
Concept
For exactly quadratic, the coefficient of \(x^4\) must be zero and the coefficient of \(x^2\) must remain non-zero. From (k-3=0), we get (k=3).
Why this answer is correct
The correct answer is A. (3). For exactly quadratic, the coefficient of \(x^4\) must be zero and the coefficient of \(x^2\) must remain non-zero. From (k-3=0), we get (k=3).
Exam Tip
ठीक द्विघात के लिए \(x^4\) का गुणांक शून्य होना चाहिए और \(x^2\) का गुणांक अशून्य रहना चाहिए। (k-3=0) से (k=3) मिलता है।
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