किस मान पर ((d+4)x-7+(d-2)x-4+15) की डिग्री (4) होगी?
For which value will the degree of ((d+4)x-7+(d-2)x-4+15) be (4)?
Explanation opens after your attempt
B. (d=-4)
Concept
For degree (4), the \(x^7\) term must vanish and the \(x^4\) term must remain. This condition holds at (d=-4).
Why this answer is correct
The correct answer is B. (d=-4). For degree (4), the \(x^7\) term must vanish and the \(x^4\) term must remain. This condition holds at (d=-4).
Exam Tip
डिग्री (4) के लिए \(x^7\) पद हटना चाहिए और \(x^4\) पद बचना चाहिए। (d=-4) पर यह शर्त पूरी होती है।
Login to save your score, XP, coins and progress.
