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Mathematics 20 Online
OpenStudy (anonymous):

Linear Algebra: Find how many Free Variables (see attachment)

OpenStudy (anonymous):

OpenStudy (zarkon):

for M-4I it looks like there is only one

OpenStudy (anonymous):

can you tell me how you arrived at this answer?

OpenStudy (anonymous):

if a column doesnt have a pivot in it, then it is associated with a free variable.

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