Prove Derivative of sin(x) = cos(x)

In this video I show how to prove tha the derivative of sin(x) is equal to cos(x). We also prove a couple of limits also.

[@FreshBeatles]

thank you awesome video. I got stuck after the trig part but then i remembered why you showed the two proofs in the beginning, as this is what i was supposed to be realizing. nice problem

[@crowsmathclass]

Thank you. Glad you liked it.

[@HoussamMoghrabi]

Just a beautiful problem and an amazing way of solving it. Thank you Steve.

[@crowsmathclass]

Thank you.

[@pauldalnoky6055]

I don't agree

[@lawrencenash4351]

I thought dumb comments were for Instagram

[@pauldalnoky6055]

@@lawrencenash4351 exactly, Einstein

[@rileycoogan8953]

Me neither

[@pauldalnoky6055]

@rileycoogan8953 thank you. It's wrong from the beginning