MATH Midterm One TF
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | False.
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| Is Every 2 x 2 augmented matrix describes a system with either a unique solution or infinitely many solutions? | show 🗑
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| Does A matrix has infinitely many solutions exactly when the lines in the corresponding system are parallel? | show 🗑
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| Does Every matrix describe a system of equations? | show 🗑
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| A line L: ax+by=c contains (0,0) when c = 0. | show 🗑
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| show | True.
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| If A=(aij) is a non augmented matrix and t is a real number then tA = (taij). | show 🗑
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| Any two matrices can be added. | show 🗑
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| show | True.
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| A matrix (aij) is equal to a matrix (bij) if both matrices have the same size and for every j, aij = bij. | show 🗑
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| For any two matrices A and B for which both AB and BA are defined, AB = BA. | show 🗑
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| show | False.
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| For any two matrices A and B for which both AB and BA are defined, AB = BA. | show 🗑
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| 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? | show 🗑
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| If A and B are matrices for which AB and BA are defined then A and B have the same size. | show 🗑
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| show | True.
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| If A is an n x n matrix and 0 is a n x n zero matrix then A + 0 = A = 0 +A. | show 🗑
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| If A is an n x n matrix then A has an inverse. | show 🗑
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| show | False.
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| If A is an invertible matrix and X and Y are matrices for which AXA^-1 = AYA^-1 then X = Y. | show 🗑
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Created by:
calhouncouch
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