Hmm?

by pythag011, Apr 27, 2009, 5:15 AM

(cyclic sum of $ z(x^3 + x^2y + x^2z - xyz)(y^3 + y^2z + y^2x - xyz))$ is always five times (cyclic sum of$ x^3y^2z^2)$? (Assuming I didn't mess up the calculations)

Also, USAMO IS ON TUESDAY. (And Wednesday.) I should definitely not fail.

Also, I am back from Bay Area.

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Dude that is funny, why are you wasting your time like that?

by serialk11r, Apr 27, 2009, 7:58 AM

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Since it's right before usamo and I was told not to do any math for 1/2/3 days before usamo.

Though I sort of messed that up, since I did Vietnam TST Day 1 yesterday. I messed up #3 since I thought something was equal to sin 2A instead of sin A/2, and it became find the minimum of that expression thats always equal to 5...

by pythag011, Apr 27, 2009, 3:44 PM

Click here if you did not make white MOP (Fake copy of pythag's blog)

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