Derivatives of Parametric Functions

[joshseppich]

I hope you're making millions, Patrick.

[jinxd]

I wish I could give you money instead of the school for my Calc 2 class at my college because you're basically the reason I have a good grade, let alone a passing one. Thanks so much!!!

[allisonkojima]

It's 2017 and I'm still watching you videos. Thank you SO much. This really helps me a ton and you are saving my calc grade rn haha.

[oliviaroy]

Over 10 years later and we're still coming to you for help. Thank you so much!!

[poxy]

Thank you a million times. Imagine I could not figure this out the whole week, but luckily for me, I had to turn to my best maths clips ever since - "Patrick JMT videos on you tube." I cant emphasize enough on the clarity of your explanations. I wish you knew how gifted you are. Once again, am so greatful for your work. Thanks.

[jashar]

I've read several calculus "help books" and three textbooks, and your videos make more sense than any of them.

[pathenry]

I know people leave comments thanking you all the time but I still don't think you understand how appreciative we are. You are the only reason I made it this far in math. Saving me a lot of stress and money. Thanks.

[gbjubjub]

All of your videos are great, I consult them before all of my Cal 2 tests and they help a ton. For once watching youtube before a test is actually a good thing.

[xhekshehu]

Best math channel ever! Thanks Patrick from Albania :D

[Elk]

I just saw this in class and thanks to your video, which explains better than my teacher, I finally understand the process: especially for the y=mx+b form of the answer, I didnt know it was unnecessary..
You have my gratitude! 5/5! I will keep on watching your videos Maestro!

[yenmeng]

You're a great teacher! Thanks a lot! 

[benjamindoverh]

im always impressed with how easy you make this stuff. thankyou much. you are getting me through calc 2.

[bluemagoo]

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[kobriking]

Man i am acing calculus becoz of you, i was really bad at maths, thanks a lot !

[millenniumf]

Calc II is pretty hard, but you're easing the pain quite a bit with these videos! I've got a test today, and I tried studying my notes, but I didn't really understand parametric equations. Then I saw this video, and it all makes sense!

[epharathapalo]

Thanks Sir. Your hit the nail on the head. Now I am pretty sure to tickle any parametric equations by using your example!

Thumps up sir!
God bless

[pbcmercrat]

i like it better when you use the long sheet of paper as opposed to the dry erase board. thanks for the great vids!

[hyky]

Man you really Are good at teaching lol. I've been watching your vids like crazy for calculus concept overviews. xD

[MrLioramirez]

you're really easy to thanks for posting

[patrickjmt]

by definition, the square root of a positive number is positive.

so, sqrt(25) = 5
sqrt (100) = 10