Derivative of Sine and Cosine 3 Examples 4k

[@IceCanBeFrozen]

Mr. Tarrou I respect your dedication to continue uploading videos. I remember when I was in middle school and referenced your videos. Now I just started my first full time position after graduating with a degree in aerospace engineering 😂 You are a legend, keep doing what your doing 👍

[@lulzjeffy1337]

The goat is back. 🐐 Love the hair, Professor! Thanks for these great lessons!

[@aashsyed1277]

thanks so much for these joyful moments!

[@richrent]

Haven't see this dude in a while, hair got longer but still quirky and very informative the way a math teacher should be. Not like a clandestine operation which most do. Math is actually fun.

[@profrobbob]

Thanks for the compliment Richard...(cove hair:) and covid teaching kept me very busy with no time to make videos but I've got a rhythm now and hope to keep posting on a more regular basis! We appreciate any sharing of this channel that you can too...BAM!!!

[@mj1653]

Dude, I made it all the way through college calculus 1 and 2 without knowing why the derivative of cos(x) is -sin(x). Great explanation!

[@thevic.torious]

So happy to see that you're still making videos! You helped me immensely years ago when I was taking precal. Now I'm finally taking Calculus and looking forward to watching your videos again! Thank you for everything you do!

[@profrobbob]

You're very welcome and thanks for your continued support. That's nice to hear and I hope you continue to find this channel helpful and if you do...please take the time to like, subscribe, share thru all social medias, with friends, classmates and especially your teacher so ALL current and future students know where to find over 700 videos of free math help...BAM!!!

[@Sg190th]

quarantine really gave you a glow up

[@profrobbob]

Thanks...no haircut till covid is over is how this all started...appreciate the support!

[@MrFakelastname]

The last time I watched a video you had short hair O_o Really just came back to say that I'm glad you kept doing what you're doing.

[@profrobbob]

It's my covid no haircut hair! Thanks for taking the time to comment and the reassurance!

[@aashsyed1277]

will u prove that the derivative of sin is cosine? plz! i don't hate t, i write it with a curve at the end of t so that i don't confuse it with the + sign......

[@jhoth405]

God king Rob

[@profrobbob]

Thanks for tuning in!

[@TheCoolProfessor]

Tell me something; what the hell is the point of this? What purpose does this serve other than to drive us non-math people insane?

[@profrobbob]

Study of sound waves, sine.. cosine... polar curves, plays a major role in sound engineering. Think of microphones, earing aids, speakers, etc... items not everyone engineers but items we all benefit from evryday.