The currents in an electrical network are given by the solutions of the system

where I1, I2, and I3 are measured in amperes. Solve the system of equations using matrices.

A. no solution
B. I1 = 3, I2 = 3, I3 = 7
C. I1 = 5, I2 = 4, I3 = 9
D. I1 = 3, I2 = 3, I3 = 6
E. I1 = 5, I2 = 9, I3 = 4


Answer: C

Mathematics

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