Difference between revisions of "2005 Austrian Mathematical Olympiad Final Round-Part 1/Problem 5"

(Created page with "5. Find all real solutions (a,b,c,d,e,f) of the system 4a = (b+c+d+e)^4, 4b = (c+d+e+f)^4, ········· 4 f = (a+b+c+d)^4. Try it! Hint: Use the concept of "without los...")
 
 
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5. Find all real solutions (a,b,c,d,e,f) of the system
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==Problem==
4a = (b+c+d+e)^4,
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Find all real solutions <math>(a,b,c,d,e,f)</math> of the system
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<cmath>4a = (b+c+d+e)^4,
 
4b = (c+d+e+f)^4,
 
4b = (c+d+e+f)^4,
·········
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\dots
4 f = (a+b+c+d)^4.
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4 f = (a+b+c+d)^4.</cmath>
  
Try it!
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Hint: Use the concept of "without loss of generality" to create a order relation between a,b,c,d,e,f.
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===Hint===
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Use the concept of [[without loss of generality]] to create an order relation between <math>a,b,c,d,e,f.</math>

Latest revision as of 15:26, 15 January 2024

Problem

Find all real solutions $(a,b,c,d,e,f)$ of the system \[4a = (b+c+d+e)^4, 4b = (c+d+e+f)^4, \dots 4 f = (a+b+c+d)^4.\]


Hint

Use the concept of without loss of generality to create an order relation between $a,b,c,d,e,f.$