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12.Which of the following algebraic expressions are(ii)(iv)polynomials?(i) 2x2-5x +1Ó_3y5-r+3x2-1x3ori-3p + 1(iii)(2b+13-Vi |
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Answer» except (vi) all are polynomial as in (vi) we have 1/x^2 term i.e. a term x^(-2) having negitive powee so it is not a polynomial. All the exponents in the algebraicexpressionmust be non-negative integers in order for the algebraicexpressionto be apolynomial. ... Each x in the algebraicexpression appears in the numerator and the exponent is a positive (or zero) integer. Therefore this is apolynomial. so, polynomial are i, ii, iii, iv, v |
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