यदि (e=0), तो (ex-9+(e-2)x-7+5x-2-1) की डिग्री क्या है?

If (e=0), what is the degree of (ex-9+(e-2)x-7+5x-2-1)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (7)

Step 1

Concept

At (e=0), the \(x^9\) term vanishes but the coefficient of \(x^7\) remains (-2). Therefore the degree is (7).

Step 2

Why this answer is correct

The correct answer is B. (7). At (e=0), the \(x^9\) term vanishes but the coefficient of \(x^7\) remains (-2). Therefore the degree is (7).

Step 3

Exam Tip

(e=0) पर \(x^9\) पद हटता है लेकिन \(x^7\) का गुणांक (-2) रहता है। इसलिए डिग्री (7) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (e=0), तो (ex-9+(e-2)x-7+5x-2-1) की डिग्री क्या है? / If (e=0), what is the degree of (ex-9+(e-2)x-7+5x-2-1)?

Correct Answer: B. (7). Explanation: (e=0) पर \(x^9\) पद हटता है लेकिन \(x^7\) का गुणांक (-2) रहता है। इसलिए डिग्री (7) है। / At (e=0), the \(x^9\) term vanishes but the coefficient of \(x^7\) remains (-2). Therefore the degree is (7).

Which concept should I revise for this Mathematics MCQ?

At (e=0), the \(x^9\) term vanishes but the coefficient of \(x^7\) remains (-2). Therefore the degree is (7).

What exam hint can help solve this Mathematics question?

(e=0) पर \(x^9\) पद हटता है लेकिन \(x^7\) का गुणांक (-2) रहता है। इसलिए डिग्री (7) है।