Find a solution to the system of simultaneous equations
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.
Here's how I'd tackle this.
This quadratic has two solutions
You can substitute this back in (2) and also make (say) x the subject, and hence get an equation in y.
Last edited by bob bundy (2012-01-15 00:42:17)
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