1 EXERCISE 5.2 1. Evaluate the following determinants:
EXERCISE 5.2
1. Evaluate the following determinants:
2. Determine the signs to be attached to the relevant minors in order to get the following cofactors of a determinant: (C13l, IC23i, (C3sl. Canl, and Cu).
6. Find the minors and cofactors of the third row, given
EXERCISE 5.3
4. Test whether the following matrices are nonsingular:
EXERCISE 5.4
4. Find the inverse of each of the following matrices:
6. Solve the system Ax=d by matrix inversion, where
EXERCISE 5.5
1. Use Cramer's rule to solve the following equation systems:
3. Use Cramer's rule to solve the following equation systems:
Homework Answers
Help me with exercise 2.5 (e) and exercise 2.16 Solve the following systems of equations by...
Help me with exercise 2.5 (e) and exercise 2.16
Solve the following systems of equations by matrix inversion or Exercise 2.5 Cramer's rule
Problem 1 Consider the matrix Problem 1 Consider the matriz a 2 5 3 11 08...
Problem 1 Consider the matrix Problem 1 Consider the matriz a 2 5 3 11 08 a Find the cofactors C11,C2,C3 of A. b Find the determinant of 1, det(A) [ 2 4 61 Problem 2 Consider the matriz A=008 | 2 5 3 a Use the ero's to put A in upper triangular form 5 Pinul the determinant of A. (A) by keeping track of the row operations in part a and the properties of determinant Problem 3 Consider...
PROBLEM 3 (20%) Evaluate the following determinants: PROBLEM-i120%) Given the matrix 3 3 1 (a Fin...
help me solve problem 4,5 & 6
PROBLEM 3 (20%) Evaluate the following determinants: PROBLEM-i120%) Given the matrix 3 3 1 (a FindAby applying Gauss-Jordan elimination 3400 -3 2 5 2 -2I 1 500 0-2 3600-3 7 -700 1-2 (b) Find by applying determinant and matrix adjoint formula PROBLEM 5110961 Let Ade 2. evaluate 3a -3b -3c (b) ICId e f (c) IDIbeh (d)IE (e) 13A [ABC! IDEI PROBLEM 6 120%) Find a way to linearise the following equations, and...
Solve the Following 3x3 system of linear equations using Cramer's Rule. Use the expansion by minors...
Solve the Following 3x3 system of linear equations using
Cramer's Rule. Use the expansion by
minors method to evaluate the determinants. Find the
solution ordered triple and check. Show Work:
3x-2y+z=12
x+3y-2z=-9
2x-4y-3z=-4
[EXPAND ALONG ROW 1] "|" is just me manually making rows to show
expansion steps
x= |_______| = |________|______|_____|______|_____|=
________=_____=
y= |_______| = |________|______|_____|______|_____|=
________=_____=
z= |_______| = |________|______|_____|______|_____|=
________=_____=
ordered triple: {(__,__)}
Include checks on x,y,z
sorry i tried uploading picture of problem but it...
2,3, 6, 7 1. Without matrices, solve the following system using the Gaussian elimination method +...
2,3, 6, 7
1. Without matrices, solve the following system using the Gaussian elimination method + 1 + HP 6x - Sy- -2 2. Consider the following linear system of equation 3x 2 Sy- (a) Write the augmented matrix for this linear system (b) Use row operations to transform the augmented matrix into row.echelon form (label all steps) (c) Use back substitution to solve the linear system. (find x and y) x + 2y 2x = 5 3. Consider the...
2. Solve the following linear systems of equations by writing the system as a matrix equation...
2. Solve the following linear systems of equations by writing the system as a matrix equation Ax = b and using the inverse of the matrix A. (You may use a calculator or computer software to find A-1. Or you can find A-1 by row-reduction.) 3x1 – 2x2 + 4x3 = 1 x1 + x2 – 2x3 = 3 2x1 + x2 + x3 = 8 321 – 2x2 + 4x3 = 10 X1 + x2 – 2x3 = 30...
Differention Equations - Can someone answer the checked numbers please? Determinants 659 is the characteristic equation of A with λ replaced by /L we can multiply by A-1 to get o get Now solve fo...
Differention Equations - Can someone answer the checked
numbers please?
Determinants 659 is the characteristic equation of A with λ replaced by /L we can multiply by A-1 to get o get Now solve for A1, noting that ao- det A0 The matrix A-0 22 has characteristic equation 0 0 2 2-A)P-8-12A +62- 0, so 8A1-12+6A -A, r 8A1-12 Hence we need only divide by 8 after computing 6A+. 23 1 4 12 10 4 -64 EXERCISES 1. Find AB,...
(1 point) In this exercise we will use the Laplace transform to solve the following initial...
(1 point) In this exercise we will use the Laplace transform to solve the following initial value problem: y" + 16 16, = { 10, 0<t<1 1<t , y(0) = 3, y'(0 = 4 (1) First, using Y for the Laplace transform of y(t), i.e., Y = L(y(t)), find the equation obtained by taking the Laplace transform of the initial value problem (2) Next solve for Y = (3) Finally apply the inverse Laplace transform to find y(t) y(t) =...
(1 point) In this exercise we will use the Laplace transform to solve the following initial...
(1 point) In this exercise we will use the Laplace transform to solve the following initial value problem: y-y={o. ist 1, 031<1. y(0) = 0 (1) First, using Y for the Laplace transform of y(t), i.e., Y = L(y(t)), find the equation obtained by taking the Laplace transform of the initial value problem (2) Next solve for Y = (3) Finally apply the inverse Laplace transform to find y(t) y) = (1 point) Consider the initial value problem O +6y=...
(8 points) Consider the following two market model Market 1: Q = 20 - P1+2Pz; Qi...
(8 points) Consider the following two market model Market 1: Q = 20 - P1+2Pz; Qi = 2P1 - 27 Market 2: Q9 = 18 – 2P, +3P; Q:= 2 + 4P, lave where Q' is the demand for good i and Q! is it's supply. Prepresents the price for good i. As you can see the the demand for a good is affected by not only its own price but also by the price of the other good. (a)...
Help me with exercise 2.5 (e) and exercise 2.16
Solve the following systems of equations by matrix inversion or Exercise 2.5 Cramer's rule
Problem 1 Consider the matrix Problem 1 Consider the matriz a 2 5 3 11 08 a Find the cofactors C11,C2,C3 of A. b Find the determinant of 1, det(A) [ 2 4 61 Problem 2 Consider the matriz A=008 | 2 5 3 a Use the ero's to put A in upper triangular form 5 Pinul the determinant of A. (A) by keeping track of the row operations in part a and the properties of determinant Problem 3 Consider...
help me solve problem 4,5 & 6
PROBLEM 3 (20%) Evaluate the following determinants: PROBLEM-i120%) Given the matrix 3 3 1 (a FindAby applying Gauss-Jordan elimination 3400 -3 2 5 2 -2I 1 500 0-2 3600-3 7 -700 1-2 (b) Find by applying determinant and matrix adjoint formula PROBLEM 5110961 Let Ade 2. evaluate 3a -3b -3c (b) ICId e f (c) IDIbeh (d)IE (e) 13A [ABC! IDEI PROBLEM 6 120%) Find a way to linearise the following equations, and...
Solve the Following 3x3 system of linear equations using
Cramer's Rule. Use the expansion by
minors method to evaluate the determinants. Find the
solution ordered triple and check. Show Work:
3x-2y+z=12
x+3y-2z=-9
2x-4y-3z=-4
[EXPAND ALONG ROW 1] "|" is just me manually making rows to show
expansion steps
x= |_______| = |________|______|_____|______|_____|=
________=_____=
y= |_______| = |________|______|_____|______|_____|=
________=_____=
z= |_______| = |________|______|_____|______|_____|=
________=_____=
ordered triple: {(__,__)}
Include checks on x,y,z
sorry i tried uploading picture of problem but it...
2,3, 6, 7
1. Without matrices, solve the following system using the Gaussian elimination method + 1 + HP 6x - Sy- -2 2. Consider the following linear system of equation 3x 2 Sy- (a) Write the augmented matrix for this linear system (b) Use row operations to transform the augmented matrix into row.echelon form (label all steps) (c) Use back substitution to solve the linear system. (find x and y) x + 2y 2x = 5 3. Consider the...
2. Solve the following linear systems of equations by writing the system as a matrix equation Ax = b and using the inverse of the matrix A. (You may use a calculator or computer software to find A-1. Or you can find A-1 by row-reduction.) 3x1 – 2x2 + 4x3 = 1 x1 + x2 – 2x3 = 3 2x1 + x2 + x3 = 8 321 – 2x2 + 4x3 = 10 X1 + x2 – 2x3 = 30...
Differention Equations - Can someone answer the checked
numbers please?
Determinants 659 is the characteristic equation of A with λ replaced by /L we can multiply by A-1 to get o get Now solve for A1, noting that ao- det A0 The matrix A-0 22 has characteristic equation 0 0 2 2-A)P-8-12A +62- 0, so 8A1-12+6A -A, r 8A1-12 Hence we need only divide by 8 after computing 6A+. 23 1 4 12 10 4 -64 EXERCISES 1. Find AB,...
(1 point) In this exercise we will use the Laplace transform to solve the following initial value problem: y" + 16 16, = { 10, 0<t<1 1<t , y(0) = 3, y'(0 = 4 (1) First, using Y for the Laplace transform of y(t), i.e., Y = L(y(t)), find the equation obtained by taking the Laplace transform of the initial value problem (2) Next solve for Y = (3) Finally apply the inverse Laplace transform to find y(t) y(t) =...
(1 point) In this exercise we will use the Laplace transform to solve the following initial value problem: y-y={o. ist 1, 031<1. y(0) = 0 (1) First, using Y for the Laplace transform of y(t), i.e., Y = L(y(t)), find the equation obtained by taking the Laplace transform of the initial value problem (2) Next solve for Y = (3) Finally apply the inverse Laplace transform to find y(t) y) = (1 point) Consider the initial value problem O +6y=...
(8 points) Consider the following two market model Market 1: Q = 20 - P1+2Pz; Qi = 2P1 - 27 Market 2: Q9 = 18 – 2P, +3P; Q:= 2 + 4P, lave where Q' is the demand for good i and Q! is it's supply. Prepresents the price for good i. As you can see the the demand for a good is affected by not only its own price but also by the price of the other good. (a)...
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