Let (a) Write b as a linear combination of the column vectors a1 and a2....

Let

(a) Write b as a linear combination of the column vectors a₁ and a₂.

(b) Use the result from part (a) to determine a solution of the linear system Ax = b. Does the system have any other solutions? Explain.

(c) Write c as a linear combination of the column vectors a₁ and a₂.