Andrew Stella from
Peebles Lab webcomic is celebrating its 100th comic. As a tribute, he did some guest art for some other comics, including the one below:
Those two guys look familiar, but I just can't place them.
Now, that's one pun I'll have to scratch off my "To Do" list.
You can't use De L'Hopital here, because you are supposed to know d(sin(x))/dx=cosx and you need the limit sin(x)/x to prove that. It's circular ^^.
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