Feb 28, 2005 16:53
Anyone like math? Here it goes:
For the polynomial equation x^3+4x^2-2x+3=0, where r1, r2, and r3 are the roots of the equation, find:
1/r1 + 1/r2 + 1/r3.
If you are up for something a bit harder, you can also try to find:
r1/r2 + r1/r3 + r2/r1 + r2/r3 + r3/r1 + r3/r2 for the same equation. (It makes more sense when they actually look like fractions)
These were some *tricky* ones from my last problem set. Enjoy!
Note: re-posted from my old OO.net blog
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