12.9 Determine the solution of the simultaneous nonlinear equations: x = 5-y y+1=x (a) Graphically. (b)...

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12.9 Determine the solution of the simultaneous nonlinear equations: x² = 5-y² y+1=x² (a) Graphically. (b) Successive substitution using initial guesses of x = y = 1.5. (c) Newton-Raphson using initial guesses of x = y = 1.5. 12.9 Determine the solution of the simultaneous nonlinear equations: x² = 5-y² y+1=x² (a) Graphically. (b) Successive substitution using initial guesses of x = y = 1.5. (c) Newton-Raphson using initial guesses of x = y = 1.5.