2. (a) Consider the polynomial p=r* - 8r" + 26z – 40z + 25 (i) Find all the multiple roots of the polynomial p or show that it has none. (ii) Do there exist polynomials q,r € Q[z] such that dp qp +r = 1? You must justify your answer. (b) Write the symmetric polynomial f = r' +y° + z³ + 6ryz in terms of elementary symmetric polynomials in the variables r, y, z.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Solve following questions?

2. (a) Consider the polynomial
p = x* – 8r* + 26.r² – 40x + 25
(i) Find all the multiple roots of the polynomial p or show that it has none.
(i) Do there exist polynomials q, r € Q[z] such that
dp
IP +r
1?
You must justify your answer.
(b) Write the symmetric polynomial
f = a³ + y* + z* + 6xyz
in terms of elementary symmetric polynomials in the variables r, y, z.
Transcribed Image Text:2. (a) Consider the polynomial p = x* – 8r* + 26.r² – 40x + 25 (i) Find all the multiple roots of the polynomial p or show that it has none. (i) Do there exist polynomials q, r € Q[z] such that dp IP +r 1? You must justify your answer. (b) Write the symmetric polynomial f = a³ + y* + z* + 6xyz in terms of elementary symmetric polynomials in the variables r, y, z.
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