किस विकल्प में डिग्री (4) नहीं है?
Which option does not have degree (4)?
Explanation opens after your attempt
D. \(x^4-x^4+7x\)
Concept
The last option simplifies to (7x). Therefore its degree is (1), not (4).
Why this answer is correct
The correct answer is D. \(x^4-x^4+7x\). The last option simplifies to (7x). Therefore its degree is (1), not (4).
Exam Tip
अंतिम विकल्प सरल होकर (7x) बनता है। इसलिए उसकी डिग्री (1) है, (4) नहीं।
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