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Imtiaz7
 one year ago
Help Please...!
Imtiaz7
 one year ago
Help Please...!

This Question is Closed

Imtiaz7
 one year ago
Best ResponseYou've already chosen the best response.0Reduce following matrix into Reduce Echlon Form:dw:1439303190612:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oooh... the matrix :>

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\Large \left[\begin{matrix}1&1&2&1\\5&0&4&2\\4&1&2&0\\1&1&1&1\end{matrix}\right\left.\begin{matrix}1\\3\\1\\0\end{matrix}\right]\]

Imtiaz7
 one year ago
Best ResponseYou've already chosen the best response.0I try but couldnt get right answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That's because you don't use magic :D

Imtiaz7
 one year ago
Best ResponseYou've already chosen the best response.0will you teach me magic :D

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well, let's see now: Add the first row to the third \[\Large \left[\begin{matrix}1&1&2&1\\5&0&4&2\\5&0&4&1\\1&1&1&1\end{matrix}\right\left.\begin{matrix}1\\3\\2\\0\end{matrix}\right] \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Any suggestions from you?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well, look what happened? It looks nice :D You can easily subtract the second row from the third, and get something simple... \[\Large \left[\begin{matrix}1&1&2&1\\5&0&4&2\\0&0&0&1\\1&1&1&1\end{matrix}\right\left.\begin{matrix}1\\3\\1\\0\end{matrix}\right] \]

Imtiaz7
 one year ago
Best ResponseYou've already chosen the best response.0how the first element of third row becomes zero

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Subtracted the second row from the third? 5  5 = 0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0We can add the third row to the first and fourth row to get \[\Large \left[\begin{matrix}1&1&2&0\\5&0&4&2\\0&0&0&1\\1&1&1&0\end{matrix}\right\left.\begin{matrix}0\\3\\1\\1\end{matrix}\right] \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Also add twice the third row to the second row \[\Large \left[\begin{matrix}1&1&2&0\\5&0&4&0\\0&0&0&1\\1&1&1&0\end{matrix}\right\left.\begin{matrix}0\\1\\1\\1\end{matrix}\right] \] Maybe you should work out the rest. It's much simpler now ^.^
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