किस (k) पर ((k-1)x-4+(k+2)x-3+7x-4) की घात (3) होगी?
For which (k) will ((k-1)x-4+(k+2)x-3+7x-4) have degree (3)?
Explanation opens after your attempt
Correct Answer
A. (k=1)
Concept
For degree (3), the \(x^4\) coefficient must be zero and the \(x^3\) coefficient must be non-zero. At (k=1), (k+2=3) is also non-zero.
Why this answer is correct
The correct answer is A. (k=1). For degree (3), the \(x^4\) coefficient must be zero and the \(x^3\) coefficient must be non-zero. At (k=1), (k+2=3) is also non-zero.
Exam Tip
घात (3) के लिए \(x^4\) का गुणांक शून्य और \(x^3\) का गुणांक अशून्य होना चाहिए। (k=1) पर (k+2=3) भी अशून्य है।
Login to save your score, XP, coins and progress.