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OpenStudy (melissa_something):
Matrices: What did I do wrongggg?!
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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
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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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