Let p(x) = x2 + 3x + 1 ∈ Z5[x] and let (p) ▹ Z5[x] be the principal ideal generated by p. Put K = Z5[x]/(p). For f(x)=x2−1∈ Z5[x] and g(x)=x2+1∈Z5[x] find a,b∈Z5 such that (f + (p))(g + (p)) = a + bx + (p) in K.
Let p(x) = x2 + 3x + 1 ∈ Z5[x] and let (p) ▹ Z5[x] be the principal ideal generated by p. Put K = Z5[x]/(p). For f(x)=x2−1∈ Z5[x] and g(x)=x2+1∈Z5[x] find a,b∈Z5 such that (f + (p))(g + (p)) = a + bx...
Let g(x) =3x + 5 and f(x) = x2 + 2x – 7 . Find f(g(x)).
Let f(x)=x2+4 and g(x)=3x−6. Find a formula for f(g(x)) in terms of x.
1- What are the units in Z? What are the units in F[x]? Don’t write out a formal proof, but discuss why. 2- What is the analogy between Z and F[x]? 3- Let p(x) = x^3 + 3x + 1 = (x+3)^2 * (x+4) in Z5[x]. (a) Perform the following computation in Z5[x]/(p(x)). Give your answers in the form [r(x)] where r(x) has degree as small as possible. i. [4x] + [3x^2 + x + 2] ii. [x^2][2x^2+1] (b) Show...
11) Fin 12) If f(x) = 3x-5 and g(x) = x2 +3x-1, find f(f(x)), g(g(x)), f(g(x)), and g(f(x)) 17 find the eyart value of siny if x is an angle in standard position whose terminal side conta
(6 pts) Let f(x) = (x2 + 3x + 1)e-x. (a) (1 pt) Find f'(2) (b) (3 pts) Solve for the intervals of increase and decrease. Show your work. (c) (2 pts) Find any local maxima or minima, and where they occur.
Let f(x) = x2 + 1 and g(x) = 2x - 5. Find a. (f+g)(x) b. (f-g)(-1) c. (fog)(-2) d. (f.g)(x) . ()
2. Consider the polynomial p = x3 + x +4 € Z5 [2]. Let q = 3x +2 € Z5 [2]. (a) Is p reducible or irreducible? Prove your claim. (b) Are there any degree 2 polynomials in [g],? Explain. (c) List all degree 3 polynomials in [g]p. (d) (ungraded for thought) How many degree 4 polynomials are in (q),? Degree 5?
Evaluate the following f(x)=x2-1 and g(x) = 3x +5. :a. f(-3) b. g(-2) c. f(0) d. g(5) 2. Find the x and y intercepts of the following functions: a) f(x) = x2 - 5x + 6 = 0b) h(x) = -2x + 20
(x2-3x+2 1. (10 marks) Let f(x) if x # +1 (x2-1) с if x = 1 Find c that would make f continuous at 1. For such c, prove that f is continuous at 1 using an ε - 8 proof.
21) g(x) 2x-2 f(x)=x2 +3x Find (g f-2+x)