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Mathematics 12 Online
OpenStudy (melissa_something):

Matrices: What did I do wrongggg?!

OpenStudy (melissa_something):

OpenStudy (melissa_something):

I got right solutions but not the right ones they wanted... I followed the instructions step by step too...

OpenStudy (anonymous):

mistake is in -4R2 + R3

OpenStudy (anonymous):

when you multiply -4R2 you get [ 0 -4 4 8 ] then adding to R3 [ 0 4 - 3 -3 ] -------------------- [ 0 0 1 5 ]

OpenStudy (anonymous):

you have [0 0 1 13] which messes up z and the other solutions

OpenStudy (puppylover784):

¿Necesitas ayuda?

OpenStudy (melissa_something):

Omg thank you @jayzdd

OpenStudy (melissa_something):

Wait @jayzdd 1x-4=-4 + 4 is 0?...

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