what will be the result of following $ \tan A + \tan (A+B)+....\tan(A+(n-1)B)$?
solve the summation of series?
what is the way to solve to series problem?
step to follow the series ?
Asked
Active
Viewed 94 times
0
Martin Sleziak
- 53,687
-
Related https://math.stackexchange.com/questions/17966/how-can-we-sum-up-sin-and-cos-series-when-the-angles-are-in-arithmetic-pro. I don't they there is a formula for tan. Why do you think that there is a formula for this? – user600016 Dec 10 '19 at 08:44
-
@user600016. There is a formula for that. The problem is that it involves the digamma function. – Claude Leibovici Dec 10 '19 at 10:47
-
Have fun with https://www.wolframalpha.com/input/?i=Sum%5BTan%5BA+%2B+i+B%5D%2C+%7Bi%2C+0%2C+n+-+1%7D%5D – Claude Leibovici Dec 10 '19 at 10:49
-
I would certainly not call that a formula :) – user600016 Dec 10 '19 at 10:57