Would you believe one correct answer to the sum of positive integers from 1 to infinity is... -1/12? Turns out it can be proven to be the case using multiple methods!
Here is one:
You can also use Euler's equations to prove the same. Rationalizing it in one's mind is an entirely different matter however .
Here is one:
You can also use Euler's equations to prove the same. Rationalizing it in one's mind is an entirely different matter however .