Prove x2+y2+z2+w2=36 for Real Numbers x, y, z, w

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Homework Help Overview

The discussion revolves around proving the equation x² + y² + z² + w² = 36 for real numbers x, y, z, and w, given a specific condition involving a summation of squares divided by expressions dependent on n, where n takes on the values 2, 4, 6, and 8.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants explore the consistency of the problem statement and clarify the equation that needs to be satisfied. There are suggestions to substitute specific values of n to derive equations involving the variables x, y, z, and w.

Discussion Status

The discussion is ongoing, with participants questioning the initial problem setup and providing guidance on how to approach the problem by substituting values for n. There is no explicit consensus yet on the path forward.

Contextual Notes

Participants note the need for clarity in the problem statement, particularly regarding the equation that the variables must satisfy, as well as the implications of the values of n used in the context.

jeedoubts
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Homework Statement


if the real numbers x,y,z,w satisfy (x2/(n2-1))+(y2/(n2-32))+(z2/(n2-52))+(w2/(n2-72)) for n=2,4,6,8 then prove
x2+y2+z2+w2=36

Homework Equations


The Attempt at a Solution


unable to think of anything?:confused:
 
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Unless I'm missing something, the problem you posted isn't consistent - what do your numbers x, y, z, w satisfy?
 
radou said:
Unless I'm missing something, the problem you posted isn't consistent - what do your numbers x, y, z, w satisfy?


sorry the exact equation is as follows
[(x2/(n2-1))+(y2/(n2-32))+(z2/(n2-52))+(w2/(n2-72))]=1
 
please help:confused::confused:
 
Edit: Add "= 1" to make an equation below.
jeedoubts said:

Homework Statement


if the real numbers x,y,z,w satisfy (x2/(n2-1))+(y2/(n2-32))+(z2/(n2-52))+(w2/(n2-72)) = 1 for n=2,4,6,8 then prove
x2+y2+z2+w2=36




Homework Equations





The Attempt at a Solution


unable to think of anything?:confused:
You're unable to think of anything? The most obvious starting point is substituting n = 2, n = 4, n = 6, and n = 8, and seeing what you get.
 
Mark44 said:
Edit: Add "= 1" to make an equation below.
You're unable to think of anything? The most obvious starting point is substituting n = 2, n = 4, n = 6, and n = 8, and seeing what you get.
That will give you four different equations in four unknowns -- in other words, exactly what is needed to solve the problem.
 

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