colombiantom (November 30, 1999 at 12:00 am)

dude..you are really good you should be y teacher..ohh by the way you look really alike to my psycology teacher who is one of the best in psy as i believe you are in math..thanks a lot and i wish good stuff to you and hope to see more videos

provexee (November 30, 1999 at 12:00 am)

Thank you very much! You give great explanations that even I can understand!

Solidstryker (November 30, 1999 at 12:00 am)

this explanation is awesome, thank you very much!!!

AbyssZomG (November 30, 1999 at 12:00 am)

This video is awesome, you have no idea how helpful these are...

ibdrumn (November 30, 1999 at 12:00 am)

thank you so very much! my friend told me about you and she said you helped a bunch! and it is true! we have a quiz tomorrow for AP Calculus and this video helps because its nice and slow so we can actually comprehend what is going on. Our teacher is a good teacher but she goes really fast and she speaks with an accent so it is hard to fully understand how to approach a related rates problem!

xiaoyi58 (November 30, 1999 at 12:00 am)

Thank you so much, I was so worried that I will fail my test on related rates tomorrow and now I think I will pass it! Thank you Thank you, you explain it better than my teacher :)

birth7781 (November 30, 1999 at 12:00 am)

I like this guy, he helps, but can't he get a camera man?

xylokid4 (November 30, 1999 at 12:00 am)

lol well thats just the derivative of any number is = 0. like if you solve it with limit definition derivative, then u use f(x+h)-f(x)/h right? well u cant do any of that with a real number. its just the way it is lol. did that help?

xylokid4 (November 30, 1999 at 12:00 am)

i liked the part when u explained the differentiation thing again because that was actually the only part I did not understand.

gumdealer328 (November 30, 1999 at 12:00 am)

you are amazing! thank you so much!