किस विकल्प में व्यंजक बहुपद नहीं है लेकिन सभी गुणांक वास्तविक हैं?
In which option is the expression not a polynomial although all coefficients are real?
Explanation opens after your attempt
Correct Answer
D. \(6x^{-2}+8\)
Concept
Having real coefficients is not enough. Because of the negative power \(x^{-2}\), it is not a polynomial.
Why this answer is correct
The correct answer is D. \(6x^{-2}+8\). Having real coefficients is not enough. Because of the negative power \(x^{-2}\), it is not a polynomial.
Exam Tip
वास्तविक गुणांक होना पर्याप्त नहीं है। \(x^{-2}\) की ऋणात्मक घात के कारण यह बहुपद नहीं है।
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