Prove that every finite integral domain is a field. Give an
example of an integral domain which is not a field.
Please show all steps of the proof. Thank you!!
a. Give an example of a finitely generated module over
an integral domain which is not isomorphic to a direct sum of
cyclic modules.
b. Let R be an integral domain and let
M=<m_1,...,m_r> be a finitely generated module. Prove that
rank of M is less than or equal to r.
Let (Z, N, +, ·) be an ordered integral domain. Let {x1, x2, . .
. , xn} be a subset of Z. Prove there exists an i, 1 ≤ i ≤ n such
that xi ≥ xj for all 1 ≤ j ≤ n. Prove that Z is an infinite set.
(Remark: How do you tell if a set is infinite??)
A. Find the indefinite integral.
B. Find the indefinite integral.
C. Find the derivative.
f(x) = x6 ·
log3(x)
Give your answer using the form below.
xA(B + C
logD(x))
A =
B =
C =
D =
D. Find the indefinite integral.
E. Find the area under the curve below from x = 1 to
x = 2. Give your answer correct to 3 decimal places.
F. Find the area under the curve below from x = 0 to...
Consider the integral
01e-x2dx
Give an explanation for why this integral cannot be solved
manually using substitution or integration by parts
Estimate this integral using the average of left and right
sums, n = 5 (2 decimals)
Approximately how
many flops are needed to find the LU factorization of an n
x n matrix using Doolittle’s method? If a computer requires 1
second to find an LU factorization of a 500 x 500 matrix, what
would you estimate is the largest matrix that could be factored in
less than 1 hour?