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Problem 420. Sum the Infinite Series II

For any x in the range 0 < x and x < 2*pi radians, find the sum of the following infinite series:

 c = 1 + 1/2*cos(x) + 1/2*3/4*cos(2*x) + 
     1/2*3/4*5/6*cos(3*x) + 1/2*3/4*5/6*7/8*cos(4*x) + ...

as a function of the form c = infinite_series2(x).

Solution Stats

22.69% Correct | 77.31% Incorrect
Last solution submitted on Jun 30, 2019

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