यदि (z=4), तो ((z-4)x-9+(z-1)x-6+3x-2-5) की डिग्री क्या होगी?
If (z=4), what will be the degree of ((z-4)x-9+(z-1)x-6+3x-2-5)?
Explanation opens after your attempt
B. (6)
Concept
Putting (z=4) makes the coefficient of \(x^9\) equal to (0) and the coefficient of \(x^6\) equal to (3). So the highest power is (6).
Why this answer is correct
The correct answer is B. (6). Putting (z=4) makes the coefficient of \(x^9\) equal to (0) and the coefficient of \(x^6\) equal to (3). So the highest power is (6).
Exam Tip
(z=4) रखने पर \(x^9\) का गुणांक (0) और \(x^6\) का गुणांक (3) होता है। इसलिए सबसे बड़ी घात (6) है।
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