True or False? In Exercises 85 and 86, determine whether each statement is true or false. If a statement is true, give a reason or cite an appropriaste statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text. (a) For the product of two matrices to be defined, the number of columns of the first matrix must equal the number of rows of the second matrix. (b) The system A x = b . Is consistent if and only if b can be expressed as a linear combination of the columns of A , where the coefficients of the linear combination are a solution of the system.
True or False? In Exercises 85 and 86, determine whether each statement is true or false. If a statement is true, give a reason or cite an appropriaste statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text. (a) For the product of two matrices to be defined, the number of columns of the first matrix must equal the number of rows of the second matrix. (b) The system A x = b . Is consistent if and only if b can be expressed as a linear combination of the columns of A , where the coefficients of the linear combination are a solution of the system.
Solution Summary: The author explains that the given statement "for the product of two matrices to be defined" is true.
True or False? In Exercises 85 and 86, determine whether each statement is true or false. If a statement is true, give a reason or cite an appropriaste statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text.
(a) For the product of two matrices to be defined, the number of columns of the first matrix must equal the number of rows of the second matrix.
(b) The system
A
x
=
b
. Is consistent if and only if
b
can be expressed as a linear combination of the columns of
A
, where the coefficients of the linear combination are a solution of the system.
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