HW#1 CRN 1693 SUMMER 2017-2018 QUESTION #2: Put this matrix in: A) REF B) RREF 3...
For each of the following matrices determine whether the matrix is in REF, in RREF or in neither RREF nor REF 0 2 -1 34 010 3 0 B- 00 2-5 0 A-0 0 0 0 0 000 0 1 0 0 0 2 1 0 1 0-4 0 D=100 C-1001 000 0 1 14-17 0 0-2 6 3 00 0 1 4 00 0 0 -3 0 0 1 G- 10 H=1000 0 0 1 J-0 0 1 A...
Question 4 1 pts Cis a 79x99 matrix. You put Cinto REF and you find that there are 52 nonzero rows. How many vectors do you need to form a basis for the null space of CT? 99 79 20 27 52 47 Next
7. (15 pts) For the matrix A= -3 1 2 3 6 -2 - 4 -9 -1 1-7 2 3 -1 5 8 - 4 4 9 0 a) Use your calculator to place the matrix in RREF. b) Find a basis for the Range(A). c) Find a basis for Nul(A).
Question 7 (1 point) Let A be an REF matrix of the augmented matrix for a system of linear equations. If the system has three variables and A has three non-zero rows, then the system has at least one solution. True False
Given the following system of linear equations 1. 2xi + 4x2 + 8 x3 + x. +2x,3 a) Write the augmented matrix that represents the system b) Find a reduced row echelon form (RREF) matrix that is row equivalent to the augmented matrix c) Find the general solution of the system d) Write the homogeneous system of equations associated with the above (nonhomogeneous) system and find its general solution.
Given the following system of linear equations 1. 2xi + 4x2...
(33 pts) This question is about the matrix = ſi 2 [3 2 0 4 1 6 3 1] 4 9 co (a) Find a lower triangular L and an upper triangular U so that A = LU. (b) Find the reduced row echelon form R = rref(A). How many independent columns in A? (c) If the vector b is the sum of the four columns of A, write down the complete solution to Ax = b
Mojo Math 1111 Summer 2020 CRN 60050 ONLINE Test: Math 1111 Summer2020Final This Question: 1 pt nt Use the compound interest formulas A =P and A-Pet to solve. Find the accumulated value of an investment of $1,000 at 12% compounded quarterly for 3 years. O A. $1,360.00 OB. $1,404.93 C. $1.425.76 OD. $1.092.73
Question 3 Use row-reduction to put the following matrix to reduced row echelon form. 5 1 1 7 4 2 1 2 0 0 3 0 Show each step.
For the following problems use: Annx n matrix A is invertible RREF(A) = I rank(A) - n A 2 x 2 matrix A is invertible = det(A) 0 3 singular (non-invertible). For which value(s) of h is A = -2 -1 -4 Choose... Choose... 6 2 h-2 a 0,b 0,c+0,d +0 A = 4 -1 C 0 x-2 or x 4 For which values of x is A = invertible a 0,b 0,c 0,d=0 4 x 2 X#1 and x2...
5. Let B be the following matrix in reduced row-echelon form: 1 B= 1 -1 0-1 0 0 2 0 0 0 0 0 0 0 0 (a) (3 pts) Let C be a matrix with rref(C) = B. Find a basis of ker(C). (b) (3 pts) Find two matrices A1 and A2 so that rref(A1) = rref(A2) im(A) # im(A2). B, and 1 (c) (5 pts) Find the matrix A with the following properties: rref(A) = B, is an...