
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
December 24th, 2010, 12:56 AM  #1 
Newbie Joined: Dec 2010 Posts: 3 Thanks: 0  Help with Trigonometry Hi guys .... 
January 1st, 2011, 01:51 AM  #2 
Senior Member Joined: Nov 2010 Posts: 288 Thanks: 1  Re: Help with Trigonometry
this expression is alway less or equal to squeroot(3) 1 when n=3 it is equal when n>3 it is always less than that

January 1st, 2011, 04:30 PM  #3 
Global Moderator Joined: Dec 2006 Posts: 20,469 Thanks: 2038 
When n>3, the sum is obviously more than ?3  1, as more terms are summed (and all are positive). However, the sum seems never to exceed ?3.

January 1st, 2011, 09:28 PM  #4  
Newbie Joined: Dec 2010 Posts: 26 Thanks: 0  Re: Help with Trigonometry Quote:
The summation can be written as Using the method of differences, you are left with . As n approaches infinity, tan (pi/n) approaches 0. Therefore, it can be deduced that the summation does not exceed sqrt(3) as mentioned by skipjack.  

Tags 
trigonometry 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Trigonometry  alloy  Trigonometry  2  October 10th, 2012 02:51 AM 
HELP :::::: trigonometry PLEASE  hgphtgi  Trigonometry  3  October 1st, 2012 10:27 AM 
Trigonometry  yeoky  Trigonometry  2  September 27th, 2012 07:04 PM 
Trigonometry  Rekooo  Algebra  6  December 13th, 2010 03:13 PM 
Trigonometry!!  puremath  Algebra  4  May 30th, 2010 12:26 PM 