SOLUTION: I have a problem... I've solved this problem by rationalizing radicals (conjugation), and I think my result is 4, but in the answer sheet I've got, it says the result is 3.8 can yo

Algebra ->  Radicals -> SOLUTION: I have a problem... I've solved this problem by rationalizing radicals (conjugation), and I think my result is 4, but in the answer sheet I've got, it says the result is 3.8 can yo      Log On


   

Question 130964: I have a problem... I've solved this problem by rationalizing radicals (conjugation), and I think my result is 4, but in the answer sheet I've got, it says the result is 3.8 can you help me?
The next addition...
%281%2F%28sqrt%282%29%2Bsqrt%281%29%29%29%2B%281%2F%28sqrt%283%29%2Bsqrt%282%29%29%29%2B...-%281%2F%28sqrt%2824%29%2Bsqrt%2823%29%29%29-%281%2F%28sqrt%2825%29%2Bsqrt%2824%29%29%29
is equal to:
a. 3
b. 3.8
c. 4
d.4.6
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
What does the whole sequence look like? It looks like you are adding terms and then at the end subtracting terms. When does the change occur?