Does the equation Ax = 0 have a nontrivial solution and (b) does the equation Ax = b have at least one solution for every possible b?

nontrivial-solution
pivot-positions

#1

(a) does the equation Ax = 0 have a nontrivial solution and (b) does the equation Ax = b have at least one solution for every possible b?
A is a 2 x 4 matrix with two pivot positions

Answer:

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