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Free Calculus Help

Browse below for our collection of online calculus resources, some from, and others as links to other great math sites. There are also several free online calculators that you may find VERY useful in solving those tricky calculus problems, or for checking your answers.

Calculus Lessons

Calculus Tools:

Recent Calculus Questions

Replacing absolute value Tuesday December 11, 2018
This sort of makes sense when I see what they've done but I don't understand the logic well enough to use this method myself. It seems a little arbitrary. Any help would be appreciated! Attachment

Question about replaced values Tuesday December 11, 2018
I don't understand how they are justifying the replacement that is being made in this example. It makes sense but I can't quite grasp the logic that's being used here so I don't think I'd be able to

binomial theorem / expansion Monday December 10, 2018
I have been stuck at a question for 3 hours, so I decided to look up the answer on the internet. This is the answer:Attachment 10633

PDE chain rule Monday December 10, 2018
Suppose that f is a differentiable function of a single variable and F(x,y) is defined by F (x, y) = f (x2 − y). a) Show that F satisfies the partial differential equation

Need help with an integral Monday December 10, 2018