MATH Midterm One TF
Help!
|
|
||||
|---|---|---|---|---|---|
| Is Every pair of lines in R^2 has an intersection? | False.
🗑
|
||||
| Is Every 2 x 2 augmented matrix describes a system with either a unique solution or infinitely many solutions? | False.
🗑
|
||||
| Does A matrix has infinitely many solutions exactly when the lines in the corresponding system are parallel? | False.
🗑
|
||||
| Does Every matrix describe a system of equations? | Yes.
🗑
|
||||
| A line L: ax+by=c contains (0,0) when c = 0. | Yes.
🗑
|
||||
| If ax+by is less than or equal to c, we can sketch the inequality by drawing the line L: ax+by=c and then shade below L. | True.
🗑
|
||||
| If A=(aij) is a non augmented matrix and t is a real number then tA = (taij). | True.
🗑
|
||||
| Any two matrices can be added. | False.
🗑
|
||||
| A matrix (aij) is equal to a matrix (bij) if both matrices have the same size and for every j, aij = bij. | True.
🗑
|
||||
| A matrix (aij) is equal to a matrix (bij) if both matrices have the same size and for every j, aij = bij. | True.
🗑
|
||||
| For any two matrices A and B for which both AB and BA are defined, AB = BA. | False.
🗑
|
||||
| If A and B are matrices for which AB and BA are defined then A and B have the same size. | False.
🗑
|
||||
| For any two matrices A and B for which both AB and BA are defined, AB = BA. | False.
🗑
|
||||
| If A is an m x n matrix and if B is an n x p matrix, and p does not equal m, is the matrix multiplication AB defined? | True.
🗑
|
||||
| If A and B are matrices for which AB and BA are defined then A and B have the same size. | False.
🗑
|
||||
| If A is an m x n matrix and if B is an n x p matrix, and p does not equal m, is the matrix multiplication AB defined? | True.
🗑
|
||||
| If A is an n x n matrix and 0 is a n x n zero matrix then A + 0 = A = 0 +A. | True.
🗑
|
||||
| If A is an n x n matrix then A has an inverse. | False.
🗑
|
||||
| If A is an invertible matrix then it is possible for A to have two inverses B and C, and B does not equal C. | False.
🗑
|
||||
| If A is an invertible matrix and X and Y are matrices for which AXA^-1 = AYA^-1 then X = Y. | True
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
calhouncouch
Popular Math sets