Course Solutions Uncategorized (Solved) : 4 Consider Ring Polynomials Rational Coefficients Q X Define Function Q Q V2 Find R 2r 5x Q33063449 . . . .

(Solved) : 4 Consider Ring Polynomials Rational Coefficients Q X Define Function Q Q V2 Find R 2r 5x Q33063449 . . . .

 

4. Consider the ring of polynomials with rational coefficients Q[x]. Define the function : Q → Q(V2) by (a) Find ф(r + 2r + 5x2 + 7). Note your answer should be in the form a + by2 (b) Prove that p is a surjective homomorphism. Note, you will need to show three things: two homo- morphism properties and that the function is surjective. (c) What is the kernel K of p? Give some examples of polynomials in K. Then find the single generator. That is, find p(x) such that the K-(p(z).

4. Consider the ring of

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