Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN: 9781337111348
Author: Bruce Crauder, Benny Evans, Alan Noell
Publisher: Cengage Learning
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Chapter P, Problem 10SBE
To determine
To simplify:
The given expression
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1.2.19. Let and s be natural numbers. Let G be the simple graph with vertex set
Vo... V„−1 such that v; ↔ v; if and only if |ji| Є (r,s). Prove that S has exactly k
components, where k is the greatest common divisor of {n, r,s}.
Question 3
over a field K.
In this question, MË(K) denotes the set of n × n matrices
(a) Suppose that A Є Mn(K) is an invertible matrix. Is it always true that A is
equivalent to A-¹? Justify your answer.
(b) Let B be given by
8
B = 0 7 7
0 -7 7
Working over the field F2 with 2 elements, compute the rank of B as an element
of M2(F2).
(c) Let
1
C
-1 1
[4]
[6]
and consider C as an element of M3(Q). Determine the minimal polynomial
mc(x) and hence, or otherwise, show that C can not be diagonalised.
[7]
(d) Show that C in (c) considered as an element of M3(R) can be diagonalised. Write
down all the eigenvalues. Show your working.
[8]
R denotes the field of real numbers, Q denotes the field of rationals, and
Fp denotes the field of p elements given by integers modulo p. You may refer to general
results from lectures.
Question 1
For each non-negative integer m, let R[x]m denote the
vector space consisting of the polynomials in x with coefficients in R and of degree ≤ m.
x²+2, V3 = 5. Prove that (V1, V2, V3) is a linearly independent
(a) Let vi = x, V2 =
list in R[x] 3.
(b) Let V1, V2, V3 be as defined in (a). Find a vector v € R[×]3 such that (V1, V2, V3, V4)
is a basis of R[x] 3.
[8]
[6]
(c) Prove that the map ƒ from R[x] 2 to R[x]3 given by f(p(x)) = xp(x) — xp(0) is a
linear map.
[6]
(d) Write down the matrix for the map ƒ defined in (c) with respect to the basis
(2,2x + 1, x²) of R[x] 2 and the basis (1, x, x², x³) of R[x] 3.
[5]
Chapter P Solutions
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Ch. P - Calculate the following expression and round to...Ch. P - If the annual percentage rate is 8% and the...Ch. P - Valentines Day According to the National Retail...Ch. P - Pet Owners According to the Humane Society, in...Ch. P - A Billion Dollars A one dollar bill is 0.0043 inch...Ch. P - National Debt In mid-2015 the U.S. population was...Ch. P - 10% Discount and 10% Tax Suppose you want to buy a...Ch. P - A Good Investment You have just received word that...Ch. P - A Bad Investment You have just received word that...Ch. P - An Uncertain Investment Suppose you invested 1300...
Ch. P - Pay Raise You receive a raise in your hourly pay...Ch. P - Heart Disease In a certain country, the number of...Ch. P - Trade Discount Often retailers sell merchandise at...Ch. P - Series Discount This is a continuation of Exercise...Ch. P - Present Value Present value is the amount of money...Ch. P - Future Value Business and finance texts refer to...Ch. P - The Rule of 72 This is a continuation of Exercise...Ch. P - The Truth in Lending Act Many lending agencies...Ch. P - The Size of the Earth The radius of the Earth is...Ch. P - When the Radius Increases a. A rope is wrapped...Ch. P - The Length of Earths Orbit The Earth is...Ch. P - Prob. 20ECh. P - Prob. 21ECh. P - Prob. 22ECh. P - Prob. 23ECh. P - Lean Body Weight in Males A persons lean body...Ch. P - Lean Body Weight in Females This is a continuation...Ch. P - Mannings Equation Hydrologists sometimes use...Ch. P - Relativistic Length A rocket ship travelling near...Ch. P - Equity in a Home When you purchase a home by...Ch. P - The Advantage Cash Card At the student union on a...Ch. P - Prob. 1SBECh. P - Prob. 2SBECh. P - Prob. 3SBECh. P - Basic Calculations 7.61.79.2Ch. P - Parenthesis and Grouping 7.3-6.82.5+1.8Ch. P - Prob. 6SBECh. P - Parentheses and Grouping 6+e+13Ch. P - Parentheses and Grouping -e+eCh. P - Prob. 9SBECh. P - Prob. 10SBECh. P - Prob. 11SBECh. P - Prob. 12SBECh. P - Prob. 13SBECh. P - Prob. 14SBECh. P - Prob. 15SBECh. P - Prob. 16SBECh. P - Arithmetic In Exercises S-16 through S-20, perform...Ch. P - Prob. 18SBECh. P - Prob. 19SBECh. P - Prob. 20SBECh. P - Prob. 21SBECh. P - Prob. 22SBECh. P - Prob. 23SBECh. P - Prob. 24SBECh. P - Prob. 25SBECh. P - Prob. 26SBECh. P - Prob. 27SBECh. P - Prob. 28SBECh. P - Prob. 29SBECh. P - Evaluating Formulas In Exercises S-21 through...Ch. P - Lending Money For a certain loan, the interest I...Ch. P - Monthly Payment For a certain instalment loan, the...Ch. P - Prob. 33SBECh. P - A Skydiver When a skydiver jumps from an airplane,...Ch. P - Future Value In certain savings scenarios, the...Ch. P - A Population of Deer The number N of deer in a...Ch. P - Prob. 37SBECh. P - Getting Three Sixes If we roll n fair dice, then...Ch. P - Prob. 1CRCh. P - Prob. 2CRCh. P - Prob. 3CRCh. P - Prob. 4CRCh. P - Keplers Third Law According to Keplers third law...Ch. P - Traffic Signal Traffic engineers study how long...
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