The famous "1=2 proof" using calculus! Reddit r/calculus

We start with x=1+1+..+1, with x many 1s. Then we can say x^2=x+x+...+x, with x many x's. Then we differentiate both sides and get 2x=1+1+...+1. which implies 2x=x and then 2=1. No, it's not because x=0 and we have just divided by 0. There's an even BIGGER problem for this false 1=2 proof. This is from Reddit r/calculus https://www.reddit.com/r/calculus/s/VYX4R4Fefx ----------------------------- Support this channel and get my calculus notes on Patreon: 👉 https://www.patreon.com/blackpenredpen Get the coolest math shirts from my Amazon store 👉 https://amzn.to/3qBeuw6 ----------------------------- #calculus #bprpcalculus #apcalculus #tutorial #math