
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
July 6th, 2012, 04:52 AM  #1 
Newbie Joined: Jul 2012 Posts: 1 Thanks: 0  Arithmetic Progression
Can anyone solve this, I have the exam in about 2 and half hours... so please if any one know how to solve it do it ASAP Translated request: "Find arithmetic progression, if:" 
July 6th, 2012, 06:19 AM  #2 
Senior Member Joined: Feb 2009 From: Adelaide, Australia Posts: 1,519 Thanks: 3  Re: [A.S.A.P] Arithmetic Progression
The hardest part here is keeping the algebra under control. Let . Then Expanding, Substituting the first into the second, Notice that I've put the square root by itself on one side, so as to simplify the next step. Square both sides and rearrange to get Solving the quadratic in dē, you get . Hence and all the terms can now be found. Two more solutions can be made by flipping the signs of c and d simultaneously. 
July 6th, 2012, 06:29 AM  #3 
Senior Member Joined: Aug 2008 Posts: 113 Thanks: 0  Re: [A.S.A.P] Arithmetic Progression Given: Or, Or, Or, Or, Or, Or, Or, Or, where Or, Can you solve the rest now? Best regards, 
July 6th, 2012, 06:38 AM  #4 
Senior Member Joined: Aug 2008 Posts: 113 Thanks: 0  Re: Arithmetic Progression
I think there are 4 solutions. Please verify if all of them are valid. The ordered pairs of values of are: Best regards, 

Tags 
arithmetic, progression 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
arithmetic progression  will.i.am1  Algebra  14  May 29th, 2013 06:27 AM 
Arithmetic progression  Algebra  2  April 5th, 2012 09:46 PM  
Arithmetic Progression  Trafford99  Algebra  7  February 28th, 2012 03:07 PM 
arithmetic progression  panky  Algebra  4  November 17th, 2011 07:05 AM 
Arithmetic Progression help!  Francis410  Algebra  1  March 22nd, 2011 07:02 AM 