A community for students.
Here's the question you clicked on:
 0 viewing
Jonask
 3 years ago
matrices
Jonask
 3 years ago
matrices

This Question is Closed

Jonask
 3 years ago
Best ResponseYou've already chosen the best response.0\[x_1+2x_2+x_3=5\] \[4x_1+7x_2+8x_3=9\] \[2x_1+3x_2+5x_3=1\] a) write the system in a matrix multiplication AX=Y

Jonask
 3 years ago
Best ResponseYou've already chosen the best response.0is it \[\left[\begin{matrix}1 & 2 &1\\ 4 & 7& 8\end{matrix}\right]\left[\begin{matrix}x_1 \\ x_n\end{matrix}\right]=\left[\begin{matrix}5 \\ 9\\1\end{matrix}\right]\]

nubeer
 3 years ago
Best ResponseYou've already chosen the best response.0hmm you missed one rown in the end in the A matrix.

UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.0\[\left[\begin{matrix}1 & 2 &1\\ 4 & 7& 8\\2&3&5\end{matrix}\right]\left[\begin{matrix}x_1 \\ x_2\\x_3\end{matrix}\right]=\left[\begin{matrix}5 \\ 9\\1\end{matrix}\right]\]

Jonask
 3 years ago
Best ResponseYou've already chosen the best response.0oh yes thank you how do we find the det(A) Adj(A)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.