Approximate solution for square root of sum of squares

  • Thread starter mrafiee
  • Start date
  • #1
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Homework Statement



If X^2=Sqrt(x1^2+x2^2+x3^2+...)=> X?

and vice versa
If X=x1+x2+x3+...=> X^2?


Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
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welcome to pf!

hi mrafiee! welcome to pf! :smile:

(try using the X2 and X2 buttons just above the Reply box :wink:)

hint: factor out the largest one (say, x2), and then it's x2(1 + something) :smile:
 

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