यदि (p(x)=(a-2)x-8+(a+1)x-5-3x+7) की डिग्री (5) है, तो (a) का सही मान कौन सा है?

If the degree of (p(x)=(a-2)x-8+(a+1)x-5-3x+7) is (5), which value of (a) is correct?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (a=2)

Step 1

Concept

For degree (5), the coefficient of \(x^8\) must be (0) and the coefficient of \(x^5\) must be non-zero. This condition holds at (a=2).

Step 2

Why this answer is correct

The correct answer is A. (a=2). For degree (5), the coefficient of \(x^8\) must be (0) and the coefficient of \(x^5\) must be non-zero. This condition holds at (a=2).

Step 3

Exam Tip

डिग्री (5) के लिए \(x^8\) का गुणांक (0) और \(x^5\) का गुणांक अशून्य होना चाहिए। (a=2) पर यह शर्त पूरी होती है।

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Mathematics Answer, Explanation and Revision Hints

यदि (p(x)=(a-2)x-8+(a+1)x-5-3x+7) की डिग्री (5) है, तो (a) का सही मान कौन सा है? / If the degree of (p(x)=(a-2)x-8+(a+1)x-5-3x+7) is (5), which value of (a) is correct?

Correct Answer: A. (a=2). Explanation: डिग्री (5) के लिए \(x^8\) का गुणांक (0) और \(x^5\) का गुणांक अशून्य होना चाहिए। (a=2) पर यह शर्त पूरी होती है। / For degree (5), the coefficient of \(x^8\) must be (0) and the coefficient of \(x^5\) must be non-zero. This condition holds at (a=2).

Which concept should I revise for this Mathematics MCQ?

For degree (5), the coefficient of \(x^8\) must be (0) and the coefficient of \(x^5\) must be non-zero. This condition holds at (a=2).

What exam hint can help solve this Mathematics question?

डिग्री (5) के लिए \(x^8\) का गुणांक (0) और \(x^5\) का गुणांक अशून्य होना चाहिए। (a=2) पर यह शर्त पूरी होती है।