Help with Solve
- To: mathgroup at smc.vnet.net
- Subject: [mg112323] Help with Solve
- From: Eduardo Cavazos <wayo.cavazos at gmail.com>
- Date: Thu, 9 Sep 2010 04:23:30 -0400 (EDT)
Hello!
A newb question I'm sure... :-)
Here's a couple of equations:
eq1 = n*Sin[x] == (m*v^2)/r;
eq2 = n*Cos[x] == m*g;
The goal is to solve for 'x'.
I can do this in a roundabout way via:
Solve[eq1 /. Solve[eq2, n], x]
I.e. solve eq2 for 'n', substitute this into eq1, and solve the result
for 'x'. But this approach seems too "manual".
Is there a more straightforward way to carry out the problem? I tried
this:
Solve[{eq1, eq2}, x]
but it doesn't seem to work. What's a good way to go about this?
Thanks!
Ed