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Homework Answers
Easy one, just use row reduction as follows.
Hope you'll love answer and thumb up.
There might be calculation errors, if there are please correct them.
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only answer and thank you السوال 1 The product of matrices [28]+[043] is: [-4 14 lo...
only answer
and thank you
السوال 1 The product of matrices [28]+[043] is: [-4 14 lo 3 4 141 1-3] 1-4 -14 2. Jul The statem +2y=1 has infinity solutions if +1V- =0 a=2 a = 0 حالة امام الامام The matrix A has no inverse if x equal to x = 4 x = 16 السوال 4 If A and B are 3*3 matrices, and if det(A)=2, det (B)=3 then det (48) = 16
7. Consider the following matrices 2 3-1 0 1 A=101-2 3 0 0 0-1 2 4...
7. Consider the following matrices 2 3-1 0 1 A=101-2 3 0 0 0-1 2 4 2 3 -1 B-101-2 0 0-1 2 3 -1 0 c=101-2 3 For each matrix, determine (a) The rank. (b) The number of free variables in the solution to the homogeneous system of equa- tions (c) A basis for the column space d) A basis for the null space for matrices A and HB e) Dimension of the column space (f) Nullity (g) Does...
13 please 8. b. -2 3 0 0 0 0 -1 2 0 0-4 0 3...
13 please
8. b. -2 3 0 0 0 0 -1 2 0 0-4 0 3 0-2 0 3 0 0 -2 0 3 0 4 o0-1 6 0 0 1 o 2 6 0 0 -1 6 10. For any positive integer k, prove that det(4t) - de(A)*. 11. Prove that if A is invertible, then den(A-1)- I/der(A) - det(4)- 12. We know in general that A-B丰B-A for two n x n matrices. However, prove that: det(A . B)-det(B...
: [3 marks] Let A and B be 3 x 3 matrices. Consider the following statements....
: [3 marks] Let A and B be 3 x 3 matrices. Consider the following statements. (1) If det(A) = 1 then det(24-1) = 2 (11) det(I + A) 3+det() (111) det(A + BT) = det(B+ 4) = Determine which of the above statements are True (1) or False (2). So, for example, if you think that the answers, in the above order, are True False False, then you would enter '1.2.2' into the answer box below (without the quotes).
Consider the following matrices: 1 2 A= 3-4 2 3 B= 3 2 1 1 0...
Consider the following matrices: 1 2 A= 3-4 2 3 B= 3 2 1 1 0 2 C= 2 1 3 -1 1 1 1 4 5 -4 2 5 1 3 4 1 0 1 1 - 2 D= E= F 4 1 31 7 3 2 Find each of the following, if possible. If it is not possible, explain your reasoning. 1 (a) AB (9) BAT (b) BA (h) (A + B) E (C) CD + E ()...
Let A be the 4 x 4 matrix given by A= [1 1 3 0 0...
Let A be the 4 x 4 matrix given by A= [1 1 3 0 0 2 2 3 0 0 3 0 0 0 4 1 0 1 3 0 0 0 2 3 Define matrices D= 1 0 0 0 0 2 0 0 0 0 3 0 0 0 0 4 and U = such that A = D+U. 0 0 0 0 0 0 For each of the following statements, decide whether the statement is true...
1. Consider the following matrices. A= 1 2 -1 0 3 4 B 2 3-4 5...
1. Consider the following matrices. A= 1 2 -1 0 3 4 B 2 3-4 5 1 and C= -[-1:] Compute each of the following, if it is defined. If an expression is undefined, explain why. (a) (4 points) A+B (b) (4 points) 2B (c) (4 points) AC (d) (4 points) CB
3 -5 0 1 0 2 0 0 Consider the matrix A= -1 -1 0 3...
3 -5 0 1 0 2 0 0 Consider the matrix A= -1 -1 0 3 1 0 -3 2 Which of the following statements about the determinant of A is true? det(2A) = 2 det A det(-A) = det A O Multiplying any row of Aby -1 does not change det A Interchanging two rows of A does not change det A
Question 1 of 8 1.0 Points 11 [100] [o 1 1] , B= 0 1 2...
Question 1 of 8 1.0 Points 11 [100] [o 1 1] , B= 0 1 2 and C = 0 1 2. Which of 10 3 4 10 3 4] Consider the matrices A= 3 4 these matrices is/are invertible? O A. All of them O B. A and B only O C. A and C only OD. B and C only O E. None of them Reset Selection Part 2 of 7 - Question 2 of 8 1.0 Points...
1 2 0 5 1 2 0 5 0 1. Consider the matrices A-10 0 3...
1 2 0 5 1 2 0 5 0 1. Consider the matrices A-10 0 3 | and B Ξ | 0 0 1 3 01 . Which of the following 0 0 0 1 0 0 0 0 1 statements is truc? a) None of the matrices is in reduced echelon form b) Both A and B are in reduced echelon form c) Only is in reduced echelon form d) Only B is in reduced echelon forım
only answer
and thank you
السوال 1 The product of matrices [28]+[043] is: [-4 14 lo 3 4 141 1-3] 1-4 -14 2. Jul The statem +2y=1 has infinity solutions if +1V- =0 a=2 a = 0 حالة امام الامام The matrix A has no inverse if x equal to x = 4 x = 16 السوال 4 If A and B are 3*3 matrices, and if det(A)=2, det (B)=3 then det (48) = 16
7. Consider the following matrices 2 3-1 0 1 A=101-2 3 0 0 0-1 2 4 2 3 -1 B-101-2 0 0-1 2 3 -1 0 c=101-2 3 For each matrix, determine (a) The rank. (b) The number of free variables in the solution to the homogeneous system of equa- tions (c) A basis for the column space d) A basis for the null space for matrices A and HB e) Dimension of the column space (f) Nullity (g) Does...
13 please
8. b. -2 3 0 0 0 0 -1 2 0 0-4 0 3 0-2 0 3 0 0 -2 0 3 0 4 o0-1 6 0 0 1 o 2 6 0 0 -1 6 10. For any positive integer k, prove that det(4t) - de(A)*. 11. Prove that if A is invertible, then den(A-1)- I/der(A) - det(4)- 12. We know in general that A-B丰B-A for two n x n matrices. However, prove that: det(A . B)-det(B...
: [3 marks] Let A and B be 3 x 3 matrices. Consider the following statements. (1) If det(A) = 1 then det(24-1) = 2 (11) det(I + A) 3+det() (111) det(A + BT) = det(B+ 4) = Determine which of the above statements are True (1) or False (2). So, for example, if you think that the answers, in the above order, are True False False, then you would enter '1.2.2' into the answer box below (without the quotes).
Consider the following matrices: 1 2 A= 3-4 2 3 B= 3 2 1 1 0 2 C= 2 1 3 -1 1 1 1 4 5 -4 2 5 1 3 4 1 0 1 1 - 2 D= E= F 4 1 31 7 3 2 Find each of the following, if possible. If it is not possible, explain your reasoning. 1 (a) AB (9) BAT (b) BA (h) (A + B) E (C) CD + E ()...
Let A be the 4 x 4 matrix given by A= [1 1 3 0 0 2 2 3 0 0 3 0 0 0 4 1 0 1 3 0 0 0 2 3 Define matrices D= 1 0 0 0 0 2 0 0 0 0 3 0 0 0 0 4 and U = such that A = D+U. 0 0 0 0 0 0 For each of the following statements, decide whether the statement is true...
1. Consider the following matrices. A= 1 2 -1 0 3 4 B 2 3-4 5 1 and C= -[-1:] Compute each of the following, if it is defined. If an expression is undefined, explain why. (a) (4 points) A+B (b) (4 points) 2B (c) (4 points) AC (d) (4 points) CB
3 -5 0 1 0 2 0 0 Consider the matrix A= -1 -1 0 3 1 0 -3 2 Which of the following statements about the determinant of A is true? det(2A) = 2 det A det(-A) = det A O Multiplying any row of Aby -1 does not change det A Interchanging two rows of A does not change det A
Question 1 of 8 1.0 Points 11 [100] [o 1 1] , B= 0 1 2 and C = 0 1 2. Which of 10 3 4 10 3 4] Consider the matrices A= 3 4 these matrices is/are invertible? O A. All of them O B. A and B only O C. A and C only OD. B and C only O E. None of them Reset Selection Part 2 of 7 - Question 2 of 8 1.0 Points...
1 2 0 5 1 2 0 5 0 1. Consider the matrices A-10 0 3 | and B Ξ | 0 0 1 3 01 . Which of the following 0 0 0 1 0 0 0 0 1 statements is truc? a) None of the matrices is in reduced echelon form b) Both A and B are in reduced echelon form c) Only is in reduced echelon form d) Only B is in reduced echelon forım
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