You want to show that the rows of this matrix are linearly independent?Originally Posted byorange890

If they are linearly independent the only solution of:

is the trivial solution a=b=c=0.

a(1 4 -2 3) + b(2 -2 1 1 ) + c(3 1 2 11) = (0 0 0 0)

This is just your previous vector equation written as four scalar equations,a + 2b + 3c = 0

4a - 2b + c = 0

-2a + b + 2 c = 0

3a + b + 11c = 0

which you should proceed to solve to show that you must have: a=b=c=0,

and so you can conclude that the rows are linearly independent.

RonL