Mathematical and Physical Journal
for High Schools
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Problem B. 4711. (April 2015)

B. 4711. Let \(\displaystyle f(x)=\frac{4^x}{4^x+2}\). Calculate the value of the sum \(\displaystyle f(0/2015)+ f(1/2015)+f(2/2015)+\dots +f(2014/2015)+f(2015/2015)\).

(5 pont)

Deadline expired on May 11, 2015.


70 students sent a solution.
5 points:60 students.
4 points:5 students.
3 points:3 students.
Unfair, not evaluated:2 solutions.

Problems in Mathematics of KöMaL, April 2015