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?
Explanation opens after your attempt
Correct Answer
B. \(x^{-3}+2x^2-1\)
Concept
(-3) is an integer but it is negative. In a polynomial, powers must be zero or positive integers.
Why this answer is correct
The correct answer is B. \(x^{-3}+2x^2-1\). (-3) is an integer but it is negative. In a polynomial, powers must be zero or positive integers.
Exam Tip
(-3) पूर्णांक है लेकिन ऋणात्मक है। बहुपद में घातें शून्य या धनात्मक पूर्णांक होनी चाहिए।
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