) An electrical circuit is analysed using mesh analysis resulting in the following system of quations: iį +i, +2i, = 9 4i, + 4i, – 3i, = 3 Si, +i, +2i, =13 etermine the values of i1, iz and i3: (i) Using Cramer's rule (ii) By writing the system in matrix form and finding the inverse of the coefficient matrix (iii) Using Gaussian elimination

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