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Sum of real Roots (Posted on 2013-01-27) Difficulty: 3 of 5
What is the sum of the real roots of (2+(2+(2+x)2)2)2=2000.

No Solution Yet Submitted by Danish Ahmed Khan    
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Solution No Subject | Comment 4 of 6 |

broll & Ch are right:

 

2000^.5-2      =42.72135955
42.72135955^.5-2=
         4.536157858
4.536157858^.5-2        =  0.129825781

 -(4.536157858)^.5-2        =
  - 4.129825781

0.129825781+(- 4.129825781)=-4

only in last step neg.root was feasible

SUM=-4

 

-Ωβ�"-
SORRY , BAD FORMATTING

Edited on January 29, 2013, 5:08 am
  Posted by Ady TZIDON on 2013-01-29 04:52:08

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