Difference between revisions of "Mock AIME 2 2006-2007 Problems/Problem 11"

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==Solution==
 
==Solution==
The sums of the squares of the roots is given in the problem; 3.
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The roots are <math>x</math>, <math>y</math>, and <math>z</math>, and we add the squares:
  
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<cmath>x^2+y^2+z^2=\boxed{003}</cmath>
  
 
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==See Also==
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http://www.artofproblemsolving.com/Wiki/index.php/1973_USAMO_Problems/Problem_4
 
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{{Mock AIME box|year=2006-2007|n=2|num-b=10|num-a=12}}
*[[Mock AIME 2 2006-2007/Problem 10 | Previous Problem]]
 
 
 
*[[Mock AIME 2 2006-2007/Problem 12 | Next Problem]]
 
 
 
*[[Mock AIME 2 2006-2007]]
 
 
 
== Problem Source==
 
This problem was given to 4everwise by a friend, Henry Tung. Upper classmen bullying freshmen. (Just kidding; it's a nice problem. [[Image:Razz.gif]]) This problem is also incredibly similar to 1973 USAMO problem 4.
 

Latest revision as of 20:55, 20 October 2019

Problem

Find the sum of the squares of the roots, real or complex, of the system of simultaneous equations

$x+y+z=3,~x^2+y^2+z^2=3,~x^3+y^3+z^3 =3.$

Solution

The roots are $x$, $y$, and $z$, and we add the squares:

\[x^2+y^2+z^2=\boxed{003}\]

See Also

http://www.artofproblemsolving.com/Wiki/index.php/1973_USAMO_Problems/Problem_4

Mock AIME 2 2006-2007 (Problems, Source)
Preceded by
Problem 10
Followed by
Problem 12
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