(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

While trying to analyze a mechanism, I find I have a complex equation that boils down to a couple of simple-looking equations with two unknowns. I'm under the impression that the ti-89 will solve this sort of set, but I'm having a huge problem figuring it out. The instruction manual isn't being very helpful. Direct help would be wonderful, so would directions to anything online.

2. Relevant equations

7cos(x) + 9cos(y) = -.732

7sin(x) + 9sin(y) = -1.0

3. The attempt at a solution

There's another method to do this, but it's rather tedious.

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# A system of complex equations in a ti-89?

Can you offer guidance or do you also need help?

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