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4217=600(1+i)^6-1/i

 Jun 18, 2021
 #1
avatar+121048 
+1

4217 = 600 [  (1+i)^6   - 1  ]  / i

 

Very difficult to solve  this algebraically.....WolframAlpha   shows  that   i   ≈  .063   =   6.3%  

 

 

cool cool cool

 Jun 18, 2021
 #2
avatar
+1

How did you solve that? I can't figure it out

Guest Jun 18, 2021
 #3
avatar+121048 
+1

As I said.....this is  very  difficult to solve  by  hand.......

 

You will  end up with this equation  :

 

600 i^5 + 3600 i^4 + 9000 i^3 + 12000 i^2 + 9000 i - 617 = 0 

 

I think  there is a general  form for  solving  this, but  I don't know what it is.....(probably very involved  !!! )

 

So.....technology  seems the  way to  go

 

 

 

 

cool cool cool

CPhill  Jun 18, 2021
 #4
avatar+32658 
+2

Here's one way of tackling this:

 

 Jun 19, 2021

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