कौन-सा व्यंजक (x) में बहुपद नहीं है क्योंकि सभी घातें पूर्णांक होने पर भी एक घात ऋणात्मक है?

Which expression is not a polynomial in (x) because although all powers are integers, one power is negative?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. \(x^{-3}+2x^2-1\)

Explanation

Simple Explanation

(-3) पूर्णांक है लेकिन ऋणात्मक है। बहुपद में घातें शून्य या धनात्मक पूर्णांक होनी चाहिए। / (-3) is an integer but it is negative. In a polynomial, powers must be zero or positive integers.

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Mathematics Answer, Explanation and Revision Hints

कौन-सा व्यंजक (x) में बहुपद नहीं है क्योंकि सभी घातें पूर्णांक होने पर भी एक घात ऋणात्मक है? / Which expression is not a polynomial in (x) because although all powers are integers, one power is negative?

Correct Answer: B. \(x^{-3}+2x^2-1\). Explanation: (-3) पूर्णांक है लेकिन ऋणात्मक है। बहुपद में घातें शून्य या धनात्मक पूर्णांक होनी चाहिए। / (-3) is an integer but it is negative. In a polynomial, powers must be zero or positive integers.