Linear Algebra: A Modern Introduction
4th Edition
ISBN: 9781285463247
Author: David Poole
Publisher: Cengage Learning
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Chapter 2.2, Problem 24EQ
To determine
To find: The possible reduced row echelon forms of 3 x 3 matrices.
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Chapter 2 Solutions
Linear Algebra: A Modern Introduction
Ch. 2.1 - In Exercises 1-6, determine which equations are...Ch. 2.1 - In Exercises 1-6, determine which equations are...Ch. 2.1 - In Exercises 1-6, determine which equations are...Ch. 2.1 - In Exercises 1-6, determine which equations are...Ch. 2.1 - In Exercises 1-6, determine which equations are...Ch. 2.1 - In Exercises 1-6, determine which equations are...Ch. 2.1 - In Exercises 7-10, find a linear equation that has...Ch. 2.1 - In Exercises 7-10, find a linear equation that has...Ch. 2.1 - In Exercises 7-10, find a linear equation that has...Ch. 2.1 - In Exercises 7-10, find a linear equation that has...
Ch. 2.1 - Prob. 11EQCh. 2.1 - In Exercises 11-14, find the solution set of each...Ch. 2.1 - In Exercises 11-14, find the solution set of each...Ch. 2.1 - In Exercises 11-14, find the solution set of each...Ch. 2.1 - In Exercises 19-24, solve the given system by back...Ch. 2.1 - In Exercises 19-24, solve the given system by back...Ch. 2.1 - In Exercises 19-24, solve the given system by back...Ch. 2.1 - In Exercises 19-24, solve the given system by back...Ch. 2.1 - In Exercises 19-24, solve the given system by back...Ch. 2.1 - In Exercises 19-24, solve the given system by back...Ch. 2.1 - The systems in Exercises 25 and 26 exhibit a lower...Ch. 2.1 - The systems in Exercises 25 and 26 exhibit a lower...Ch. 2.1 - Find the augmented matrices of the linear systems...Ch. 2.1 - Find the augmented matrices of the linear systems...Ch. 2.1 - Find the augmented matrices of the linear systems...Ch. 2.1 - Prob. 30EQCh. 2.1 - In Exercises 31 and 32, find a system of linear...Ch. 2.1 - Prob. 32EQCh. 2.2 - In Exercises 1-8, determine whether the given...Ch. 2.2 - In Exercises 1-8, determine whether the given...Ch. 2.2 - In Exercises 1-8, determine whether the given...Ch. 2.2 - In Exercises 1-8, determine whether the given...Ch. 2.2 - In Exercises 1-8, determine whether the given...Ch. 2.2 - In Exercises 1-8, determine whether the given...Ch. 2.2 - In Exercises 1-8, determine whether the given...Ch. 2.2 - In Exercises 1-8, determine whether the given...Ch. 2.2 - In Exercises 9-14, use elementary row operations...Ch. 2.2 - In Exercises 9-14, use elementary row operations...Ch. 2.2 - In Exercises 9-14, use elementary row operations...Ch. 2.2 - In Exercises 9-14, use elementary row operations...Ch. 2.2 - In Exercises 9-14, use elementary row operations...Ch. 2.2 - In Exercises 9-14, use elementary row operations...Ch. 2.2 - 15. Reverse the elementary row operations used in...Ch. 2.2 - 16. In general, what is the elementary row...Ch. 2.2 - Prob. 17EQCh. 2.2 - In Exercises 17 and 18, show that the given...Ch. 2.2 - 19. What is wrong with the following “proof” that...Ch. 2.2 - What is the net effect of performing the following...Ch. 2.2 - Students frequently perform the following type of...Ch. 2.2 - Consider the matrix A=[2314]. Show that any of the...Ch. 2.2 - What is the rank of each of the matrices in...Ch. 2.2 - Prob. 24EQCh. 2.2 - In Exercises 25-34, solve the given system of...Ch. 2.2 - In Exercises 25-34, solve the given system of...Ch. 2.2 - In Exercises 25-34, solve the given system of...Ch. 2.2 - In Exercises 25-34, solve the given system of...Ch. 2.2 - In Exercises 25-34, solve the given system of...Ch. 2.2 - In Exercises 25-34, solve the given system of...Ch. 2.2 - In Exercises 25-34, solve the given system of...Ch. 2.3 - In Exercises 1-6, determine if the vector is a...Ch. 2.3 - In Exercises 1-6, determine if the vector is a...Ch. 2.3 - In Exercises 1-6, determine if the vector is a...Ch. 2.3 - In Exercises 1-6, determine if the vector vis a...Ch. 2.3 - In Exercises 1-6, determine if the vector is a...Ch. 2.3 - In Exercises 7 and 8, determine if the vector b is...Ch. 2.3 - Show that 3=span([101],[110],[011])Ch. 2.3 - Use the method of Example 2.23 and Theorem 2.6 to...Ch. 2.3 - Use the method of Example 2.23 and Theorem 2.6 to...Ch. 2.3 - Use the method of Example 2.23 and Theorem 2.6 to...Ch. 2.4 - 1. Suppose that, in Example 2.27, 400 units of...Ch. 2.4 - 2. Suppose that in Example 2.27, 400 units of food...Ch. 2.4 - A florist offers three sizes of flower...Ch. 2.4 - 4. (a) In your pocket you have some nickels,...Ch. 2.4 - 5. A coffee merchant sells three blends of coffee....Ch. 2.4 - Redo Exercise 5, assuming that the house blend...Ch. 2.4 - In Exercises 7-14, balance the chemical equation...Ch. 2.4 - In Exercises 7-14, balance the chemical equation...Ch. 2.4 - In Exercises 7-14, balance the chemical equation...Ch. 2.4 - In Exercises 7-14, balance the chemical equation...Ch. 2.4 - In Exercises 7-14, balance the chemical equation...Ch. 2.4 - In Exercises 7-14, balance the chemical equation...Ch. 2.4 - In Exercises 7-14, balance the chemical equation...Ch. 2.4 - In Exercises 7-14, balance the chemical equation...Ch. 2.4 - For Exercises 19 and 20, determine the currents...Ch. 2.4 - For Exercises 19 and 20, determine the currents...Ch. 2.4 - 21. (a) Find the currents in the bridge circuit...Ch. 2.4 -
22. The networks in parts (a) and (b) of Figure...Ch. 2.4 -
23. Consider a simple economy with just two...Ch. 2.4 - Suppose the coal and steel industries form a...Ch. 2.4 -
25. A painter, a plumber, and an electrician...Ch. 2.4 -
31. In Example 2.35, describe all possible...Ch. 2 - What is the maximum rank of a 53 matrix? What is...
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- Question 4 Find the value of the first element for the first row of the inverse matrix of matrix B. 3 Not yet answered B = Marked out of 5.00 · (³ ;) Flag question 7 [Provide your answer as an integer number (no fraction). For a decimal number, round your answer to 2 decimal places] Answer:arrow_forwardQuestion 2 Not yet answered Multiply the following Matrices together: [77-4 A = 36 Marked out of -5 -5 5.00 B = 3 5 Flag question -6 -7 ABarrow_forwardAssume {u1, U2, u3, u4} does not span R³. Select the best statement. A. {u1, U2, u3} spans R³ if u̸4 is a linear combination of other vectors in the set. B. We do not have sufficient information to determine whether {u₁, u2, u3} spans R³. C. {U1, U2, u3} spans R³ if u̸4 is a scalar multiple of another vector in the set. D. {u1, U2, u3} cannot span R³. E. {U1, U2, u3} spans R³ if u̸4 is the zero vector. F. none of the abovearrow_forward
- Select the best statement. A. If a set of vectors includes the zero vector 0, then the set of vectors can span R^ as long as the other vectors are distinct. n B. If a set of vectors includes the zero vector 0, then the set of vectors spans R precisely when the set with 0 excluded spans Rª. ○ C. If a set of vectors includes the zero vector 0, then the set of vectors can span Rn as long as it contains n vectors. ○ D. If a set of vectors includes the zero vector 0, then there is no reasonable way to determine if the set of vectors spans Rn. E. If a set of vectors includes the zero vector 0, then the set of vectors cannot span Rn. F. none of the abovearrow_forwardWhich of the following sets of vectors are linearly independent? (Check the boxes for linearly independent sets.) ☐ A. { 7 4 3 13 -9 8 -17 7 ☐ B. 0 -8 3 ☐ C. 0 ☐ D. -5 ☐ E. 3 ☐ F. 4 THarrow_forward3 and = 5 3 ---8--8--8 Let = 3 U2 = 1 Select all of the vectors that are in the span of {u₁, u2, u3}. (Check every statement that is correct.) 3 ☐ A. The vector 3 is in the span. -1 3 ☐ B. The vector -5 75°1 is in the span. ГОЛ ☐ C. The vector 0 is in the span. 3 -4 is in the span. OD. The vector 0 3 ☐ E. All vectors in R³ are in the span. 3 F. The vector 9 -4 5 3 is in the span. 0 ☐ G. We cannot tell which vectors are i the span.arrow_forward
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