Problem #7: Which of the following statements are always true for vectors in R3? (i) If u (vx w)-4 then w - (vxu)-4 (ii) (5u + v) x (1-40 =-21 (u x v) (ili) If u is orthogonal to v and w then u is also orthogonal to w | V + V W (A)( only (B) (iii) only (C) none of them (D) (i) and (iii) only (E) all of them (F) (i) only (G)i and (ii) only (H)...
Problem #5: (a) Let u =(2, -4,-8, -10) and v=(-1, -3, 8, -10). Find ||u – proj,u||. Note: You can partially check your work by first calculating projyu, and then verifying that the vectors projyu and u-proj,u are orthogonal. (b) Consider the following vectors u, v, w, and z (which you can copy and paste directly into Matlab). v = (-8.1 4.2 6.3], w = [-9 -3.7 5.5], u z = = [-8.6 -3.4 -7.1], [-3.2 2 -4.9] Find the...
Problem #4: Let 0 2 A = 2 9 and b = 0 2 4 Find the least squares solution of the linear system Ax = b. Enter the components of the least squares solution x = [x y]? into the answer box below (in order), separated with a comma. Problem #4: Enter your answer symbolically, as in these examples Just Save Submit Problem #4 for Grading Problem #4 Attempt #1 Attempt #2 Attempt #3 Your Answer: Your Mark:
Problem #8 : A lamina with constant density ρ(r.))-5 occupies the region under the curve y-sin(m/8) from x-0 to x-8. Find the moments of inertia 4 and Enter the values of 4 and ly (in that order) into the answer box below, separated with a comma. Enter your answer symbolically, as in these examples Problem #8: Just save Submit Problem #8 for Grading Problem #8 | Attempt #1 | Attempt #2 Attempt #3 Attempt #4 Attempt #5 Your Answer: Your...
Let u = 4 – 7i, v=1+5 i and w= 6 + 7 i. What is u – (v – w)? Simplify your answer, giving it in the form a + bi. U- (v – W) = (To enter i, type i )
For problem #1 I used the formula FV=PV(I+i)^n where I solved for n to get 8.2097. Im unsure of how to solve question #2. Help ASAP would be very appreciated. Thank you. Problem #1: How many years does it take for a deposit of $1000 to reach $3150 with an annual effective interest rate of 15%? Problem #1: 8.2097 Answer correct to 4 decimals Just Save Your work has been saved! (Back to Admin Page) Submit Problem #1 for Grading...
Directions: In 25-27, let u = 15-6i .V=-5+ 4i, and w=-2-i. [25] Simplify u + 3v: A) -6i B) 6i C) 30-6i D) 30+6i E) none of these [26] Find the sum of the conjugate of v and the conjugate of w. A)-7-31 B) -7 +31 C) 7-3i D) 7+3i E) none of these [27] Subtract w from u. A) -17-71 B) -17+5i c) 13-5i D) 13-71 E) none of these
Problem #2: Let y(t) be the solution to the following initial value problem 6, y'(0)3 y"7y Find Y(s), the Laplace transform ofy() Enter your answer as a symbolic function of s, as in these examples Problem #2: Submit Problem #2 for Grading Just Save Attempt #3 Problem #2 Attempt # 2 Attempt #5 Attempt#1 Attempt #4 Your Answer: Your Mark
DETAILS LARLINALG8 8.4.027. Let u = (1 - 1,3i), v = (21, 2 + i), w = (1 + i, 0), and k = -1. Evaluate the expressions in parts (a) and (b) to verify that they are equal. (a) u v (b) Vio
Let u = 5i - j, v = 41+ j, and w=i+6j. Find the specified scalar. u.V+U.W u•v+u•w= (Simplify your answer.) Enter your answer in the answer box. Save for Later < Previous