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June 13th, 2012, 04:33 AM  #1 
Newbie Joined: Jun 2012 Posts: 3 Thanks: 0  please solve this simple equation, thx
The equation is 1000 = 272/ (1+i)^0.25 + 272/(1+i)^0.5 + 544/(1+ i)^1 find the value of i. The result is i = 0,13185 why wondering how the result came. can you please let me know the each step taken for calcuation. Thanks , kiran 
June 13th, 2012, 09:04 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 520 Math Focus: Calculus/ODEs  Re: please solve this simple equation, thx
We are given: Multiply through by and rearrange to obtain: Let : Use a numerical method to determine one of the real roots is: 

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