Hello!
I was given the following series (1 to inf):
((47^(2*n) *(-1)^n)/ Factorial(2*n),1,inf)
Which eventually gives you cos 47 in radians.
I'm trying to find a way to calculate the index number that gives me the cos 47 accuracy of 0.001 (or less), using symsum. (and not with a 'while' loop that checks every iteraion if cos47 minus current series gives me 0.001 or less).
Thank you very much!
Best Answer