यदि ((r+9)x^{10}+(r+9)x-3+18) की डिग्री (0) है, तो (r) का मान क्या है?

If the degree of ((r+9)x^{10}+(r+9)x-3+18) is (0), what is the value of (r)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. (r=-9)

Step 1

Concept

For degree (0), both variable terms must vanish. From (r+9=0), we get (r=-9).

Step 2

Why this answer is correct

The correct answer is B. (r=-9). For degree (0), both variable terms must vanish. From (r+9=0), we get (r=-9).

Step 3

Exam Tip

डिग्री (0) के लिए दोनों चर पद हटने चाहिए। (r+9=0) से (r=-9) मिलता है।

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Mathematics Answer, Explanation and Revision Hints

यदि ((r+9)x^{10}+(r+9)x-3+18) की डिग्री (0) है, तो (r) का मान क्या है? / If the degree of ((r+9)x^{10}+(r+9)x-3+18) is (0), what is the value of (r)?

Correct Answer: B. (r=-9). Explanation: डिग्री (0) के लिए दोनों चर पद हटने चाहिए। (r+9=0) से (r=-9) मिलता है। / For degree (0), both variable terms must vanish. From (r+9=0), we get (r=-9).

Which concept should I revise for this Mathematics MCQ?

For degree (0), both variable terms must vanish. From (r+9=0), we get (r=-9).

What exam hint can help solve this Mathematics question?

डिग्री (0) के लिए दोनों चर पद हटने चाहिए। (r+9=0) से (r=-9) मिलता है।