Grandi's Series Is 1-1+1-1+1-1+1-1+1...

Grandi's Series Is 1-1+1-1+1-1+1-1+1...

Here's a brain-bending question for you. What is this equal to: 1-1+1-1+1-1+1...? This is known as Grandi's series, and it may very well drive you crazy. Find out why, and the possible solutions in the video below.

One Minus One Plus One Minus One Plus One...

Can you solve Grandi's series?

The Prime Problem With A One Sentence Proof

Sounds simple, right?

Problems With Zero

Why can't you divide by nothing?

See all





Get smarter every day! Like us on Facebook.
You'll get the most interesting and engaging topics in your feed, straight from our team of experts.