यदि (q(x)=(m+4)x-5+(m-1)x-4+x-2) की घात (4) हो, तो (m) क्या होगा?

If (q(x)=(m+4)x-5+(m-1)x-4+x-2) has degree (4), what is (m)?

Explanation opens after your attempt
Correct Answer

B. (-4)

Step 1

Concept

For degree (4), the \(x^5\) coefficient must be zero and the \(x^4\) coefficient must be non-zero. At (m=-4), (m-1=-5) is non-zero.

Step 2

Why this answer is correct

The correct answer is B. (-4). For degree (4), the \(x^5\) coefficient must be zero and the \(x^4\) coefficient must be non-zero. At (m=-4), (m-1=-5) is non-zero.

Step 3

Exam Tip

घात (4) के लिए \(x^5\) का गुणांक शून्य और \(x^4\) का गुणांक अशून्य चाहिए। (m=-4) पर (m-1=-5) अशून्य है।

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Mathematics Answer, Explanation and Revision Hints

यदि (q(x)=(m+4)x-5+(m-1)x-4+x-2) की घात (4) हो, तो (m) क्या होगा? / If (q(x)=(m+4)x-5+(m-1)x-4+x-2) has degree (4), what is (m)?

Correct Answer: B. (-4). Explanation: घात (4) के लिए \(x^5\) का गुणांक शून्य और \(x^4\) का गुणांक अशून्य चाहिए। (m=-4) पर (m-1=-5) अशून्य है। / For degree (4), the \(x^5\) coefficient must be zero and the \(x^4\) coefficient must be non-zero. At (m=-4), (m-1=-5) is non-zero.

Which concept should I revise for this Mathematics MCQ?

For degree (4), the \(x^5\) coefficient must be zero and the \(x^4\) coefficient must be non-zero. At (m=-4), (m-1=-5) is non-zero.

What exam hint can help solve this Mathematics question?

घात (4) के लिए \(x^5\) का गुणांक शून्य और \(x^4\) का गुणांक अशून्य चाहिए। (m=-4) पर (m-1=-5) अशून्य है।