Best explanation I’ve found on KZfaq!

This is just what I needed. You're a lifesaver. Thank you.

great video!! I have watched a lot of calculus videos and no one has explained like you. Hats off to you sir.

Amazing explanation! Thanks so much! (it was 1000 times better than my textbook)

This is an awesome explanation! Thanks a lot!

OMG! Thank you for such an intuitive explanation.

Best explanation on this topic to be found on the internet

8 years You helped me my man your explnstion is very good Thank you

very good explanation

Absolutely amazing explanation

Thanks for your help.

Great explanation. Thanks

Great video, thanks a lot

A true scholar.

Thank you SO much!

my calculus 1 professor is great, but he moves kind of fast at times. this helped me out a lot. thanks

Amazing sir

3:47... but dy is not the change in y of the curve. It is the change of y of the tangent line. If it were just the change in y of the curve I don't think we would have this silly notation! LOL

Thank you so much

thank you soooo much you ralleay helped me i have an exam after two days keeb in that way and i wait new vedios sorry for my english

exam retake in two days :D

Urdu Mai koi explan Kary na🥲