I'm trying to solve the following set of equations, I'm trying to work out how to put them into matrix form to solve, but I can't see how to.

Printable View

- Apr 7th 2009, 11:53 PMCrakasolving equations
I'm trying to solve the following set of equations, I'm trying to work out how to put them into matrix form to solve, but I can't see how to.

- Apr 8th 2009, 11:06 AMOpalg
You can't put them into matrix form because they are not linear equations.

But you can do a lot to simplify them. For start, the last equation just says that . So it follows from the first two equations that . Multiply out those fractions, substitute (from the third equation), and you'll have a quadratic equation for . Once you know , you can substitute back and find the other unknowns quite easily.