Question: Solve the following linear system by using Cramer's rule; (a) is a parameter. Ax=b, A= 3 2 2 -1 2 1239 0 -1 2 X1
Solve the following linear system by using Cramer's rule; \(a\) is a parameter.

Ax=b, A= 3 2 2 -1 2 1239 0 -1 2 X1 2a+4 -2 X2 2 X: b= 1 -1 X3 2a-2 -1 2 3 X4 2a
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