किस विकल्प में डिग्री (9) नहीं है?
Which option does not have degree (9)?
Explanation opens after your attempt
D. \(x^9-x^9+12x^6\)
Concept
The last option simplifies to \(12x^6\). Therefore its degree is (6), not (9).
Why this answer is correct
The correct answer is D. \(x^9-x^9+12x^6\). The last option simplifies to \(12x^6\). Therefore its degree is (6), not (9).
Exam Tip
अंतिम विकल्प सरल होकर \(12x^6\) बनता है। इसलिए उसकी डिग्री (6) है, (9) नहीं।
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