roles) || in_array('administrator', $user->roles) || in_array('admin', $user->roles ) ) { ?>
probname); ?>
Topic Classification: nid, "Topic Classification"); ?> Tags: nid, "Problem Tag");?>
Topics: nid, "Topics"); ?> Prerequisites: nid, "Prerequisites"); ?>
Supplies: nid, "Supplies"); ?> Pedagogy: nid, "Pedagogy"); ?>
Grade Vs Difficulty:
  EasyModerateChallengingPerplexing
1-2
3-4
5-6
7-8
 
 
9-10
 
 
11-12
13-14
Solution: nid, "Solution"); ?>
Problem

($\textbf{Pappus}$) The chain of inscribed circles, $C_n$, in an arbelos has the following property. The distance from the diameter of the largest semicircle to the center of the $nth$ circle in the chain, $C_n$, is exactly equal to $n\cdot d_n$, where $d_n$ is the diameter of $C_n$. (Hint: Use inversion in a circle orthogonal to $C_n$.)

Details
Authors
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References
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Reference Author Reference Title Reference URL
'; } ?>
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Problem Sets This Problem Belongs to:
parent_nid; ?> Set:
VARIABLES
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DEFINITIONS
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