किस मान पर ((k+5)x-4-7x+9) की डिग्री (1) होगी?
For which value will the degree of ((k+5)x-4-7x+9) be (1)?
Explanation opens after your attempt
B. (k=-5)
Concept
For degree (1), the coefficient of \(x^4\) must be (0). From (k+5=0), we get (k=-5).
Why this answer is correct
The correct answer is B. (k=-5). For degree (1), the coefficient of \(x^4\) must be (0). From (k+5=0), we get (k=-5).
Exam Tip
डिग्री (1) के लिए \(x^4\) का गुणांक (0) होना चाहिए। (k+5=0) से (k=-5) मिलता है।
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