?Prove: If A is an $m \times n$ matrix and B is the $n \times 1$ matrix each of

Chapter 1, Problem 21

(choose chapter or problem)

Prove: If A is an $m \times n$ matrix and B is the $n \times 1$ matrix each of whose entries is $1 / n$, then

$A B=\left[\begin{array}{c} \bar{r}_{1} \\ \bar{r}_{2} \\ \vdots \\ \bar{r}_{m} \end{array}\right] $

Equation Transcription:

$m\times{}n$

$n\times{}1$

$1/n$

$AB=\left[{{\overline{r}}_{1}\ {\overline{r}}_{2}\ \vdots{}\ {\overline{r}}_{m}\ }\right]$

Text Transcription:

m x n

n x 1

1/n

AB=[r_1 r_2 r_m]

Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.

?Prove: If A is an \(m \times n\) matrix and B is the \(n \times 1\) matrix each of