# 2331_hw2 - a Draw the row picture b Draw the column picture...

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1 Name: ______________________ Math 2331 Homework 2 This homework is due in class (at the beginning of class), on the date announced on your instructor’s website. No late homework will be accepted. Please write neatly and staple the pages. Homework from textbook: (turn in the problems marked with *) Section 2.1: 4*, 9b* , 10b*, 14, 15*, 17, 18, 26* Section 2.2: 1, 2, 3, 5*, 6, 9*, 11, 12*, 13*, 19*, 21. Problem 1: If 1 2 0 1 1 2 0 4 2 ² , ³ = ± 1 3 5 ² , ´ = ± 1 1 1 ² , µ = ± 1 0 0 ² , a) b) c) &³ =

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2 Problem 2: Consider the following system.
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Unformatted text preview: a) Draw the row picture. b) Draw the column picture. c) Write the system in matrix form Ax b = . d) What is the solution of the system? 3 Problem 3: Solve this system without elimination. Show why your answer works. & 1 0 2 2 2 0 3 2 2 ±² ³ ´ µ ¶ = & 3 4 5 ± & 1 0 2 2 2 3 2 2 ± ² ³ ´ µ ¶ = & 4 4 ± & 1 0 2 2 2 3 2 2 ± ² ³ ´ µ ¶ = & 2 4 5 ± Problem 4: Solve this system with elimination and back substitution (as we did in 2.2) . Show your work. 2 1 2 2 2 3 2 4 13 x z x y x y z + = + = + + =...
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2331_hw2 - a Draw the row picture b Draw the column picture...

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