Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Would appreciate some help with these, thank you (Section 4.1) 20 points 1. a. Let u = (1, 2, -3, 5, 0), v = (0,

Would appreciate some help with these, thank you

image text in transcribedimage text in transcribed
(Section 4.1) 20 points 1. a. Let u = (1, 2, -3, 5, 0), v = (0, 4, -1, 1, 2), and w = (7, 1, -4, -2, 3). Find the components of i. ut w ii. 3(2u - v) ini. (3u - 5) - (2u+ 4w) iv . - ( 20 - 50 + 21 ) + 8 b. Find scalars C1, C2, and c3 for which the equation is satisfied, C1(-1, 0, 2) + c2(2, 2, -2) + c3(1, -2, 1) = (-6, 12, 4) (Section 4.2) 20 points 2. a. Find the Euclidean distance between u and v and the cosine of the angle between those vectors. State whether that angle is acute, obtuse, or 90. i. u = (1, 2, -3, 0), 0 = (5, 1, 2, -2) ii. u = (0, 1, 1, 1, 2), 0 = (2, 1,0, -1,3) b. Verify that the Cauchy-Schwarz inequality holds. i. u = (4, 1, 1), 7 = (1, 2, 3) ii. u = (1, 2, 1, 2, 3), 0 = (0, 1, 1, 5, -2) (Section 4.3) 20 points 3. a. Find the distance between the given parallel planes 2x - y + z = 1; 2x- y + z= -1. b. i. Show that U = (a, b) and w = (-b, a) are orthogonal vectors. ii. Use the result in part i. to find two vectors that are orthogonal to U = (2, -3). iii. Find two unit vectors that are orthogonal to v = (-3, 4).(Section 4.4) 20 points 4. a. Find the general solution to the linear system and confirm that the row vectors of the coefficient matrix are orthogonal to the solution vectors. 21 + 3x2 - 423 = 0 x1+ 2 2 + 323 = 0 b. i. Find a homogeneous linear system of two equations in three unknowns whose solution space consists of those vectors in IR3 that are orthogonal to a = (-3, 2, -1) and b = (0, -2, -2). ii. What kind of geometric object is the solution space? iii. Find a general solution of the system obtained in part i., and confirm that Theorem 3.4.3 of the textbook holds. (Section 4.5) 20 points 5. a. Find the area of the triangle in 3-space that has vertices P(1, -1, 2), Q(0, 3, 4) and R(6, 1, 8). b. Given u = (-1, 2, 4), v = (3, 4, -2), w = (-1, 2, 5), compute the scalar triple product u . (v x w) c. Given u . (3 x w) = 3, find the following, i. v. (ux w ) ii. (ux W) . J iii. U. (w x w)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Linear Algebra A Modern Introduction

Authors: David Poole

4th edition

1285463242, 978-1285982830, 1285982835, 978-1285463247

More Books

Students also viewed these Mathematics questions