किस मान पर ((d+9)x-9+(d-4)x-6+19) की डिग्री (6) होगी?

For which value will the degree of ((d+9)x-9+(d-4)x-6+19) be (6)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (d=-9)

Step 1

Concept

For degree (6), the \(x^9\) term must vanish and the \(x^6\) term must remain. This condition holds at (d=-9).

Step 2

Why this answer is correct

The correct answer is B. (d=-9). For degree (6), the \(x^9\) term must vanish and the \(x^6\) term must remain. This condition holds at (d=-9).

Step 3

Exam Tip

डिग्री (6) के लिए \(x^9\) पद हटना चाहिए और \(x^6\) पद बचना चाहिए। (d=-9) पर यह शर्त पूरी होती है।

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Mathematics Answer, Explanation and Revision Hints

किस मान पर ((d+9)x-9+(d-4)x-6+19) की डिग्री (6) होगी? / For which value will the degree of ((d+9)x-9+(d-4)x-6+19) be (6)?

Correct Answer: B. (d=-9). Explanation: डिग्री (6) के लिए \(x^9\) पद हटना चाहिए और \(x^6\) पद बचना चाहिए। (d=-9) पर यह शर्त पूरी होती है। / For degree (6), the \(x^9\) term must vanish and the \(x^6\) term must remain. This condition holds at (d=-9).

Which concept should I revise for this Mathematics MCQ?

For degree (6), the \(x^9\) term must vanish and the \(x^6\) term must remain. This condition holds at (d=-9).

What exam hint can help solve this Mathematics question?

डिग्री (6) के लिए \(x^9\) पद हटना चाहिए और \(x^6\) पद बचना चाहिए। (d=-9) पर यह शर्त पूरी होती है।