Calculus of Trigonometric Functions (3 of 3: Proving the basic derivative)

[MrMoons-jjrz]

I think Calculus is just like a magic show. When we differentiate/integrate a function we get another function, well that's interesting. we don't know what's really going on there.
But What you are doing is, just revealing the secret behind the magic. That's " AMAZING " mann...

[skaslam]

Today i saw a vdo of u, , & became fan, , i hv never seen a teacher like you, , the way you teaching, , , just incredible, , student from india.

[cinnamonpudge]

This is just beautiful. And the enthusiasm, wow. I was smiling all throughout the video. These kids are unbelievable lucky.

[adityashastri]

bro how tf is this guy such a genius???

[sitienlieng]

could you please do the integral of x*sin(1/x) from 0 to 1?

[eyalronen]

Wouldn't the Sin(h) over h work with degrees?
L'Hopital is cos(h) over 1, as h tends to zero cos(h) tends to one.

[null_st]

does anyone have a link to a video of him explaining the part where he distributes sin(x+h) - sin(x-h)?

[ik]

Why is it only 1 in radians but not in degrees??

[ikennaokoro]

But 0/0 is not one it is still undefined.

[jorgeuni]

This teacher is very very knowledgeable but i wonder if he is teaching in high school students or college students. it seems like he is just lecturing. he does not get any feedback from students. he asked questions and he answered himself basically like a TV show, not really having students engaged in the discovery. This is the old fashion teaching, ( teacher center ) . I m also a math teacher in the states, and i will kill my class by just lecturing. i rather asked my students watch some youtube classes online at home then do activities( hands-on) in class. what he is doing is throwing stuff at his passive students, and i don't see what they students are doing ( probably sleeping). This teacher with all due respect, it is all about him, not about the students. I would like to see a teaching process more like student center, not teacher center.

[markjohnson]

Please STOP asking “ does that make sense “ . None of it ‘ makes sense ‘ . It is all ‘ non - sense ‘ . However, we will try to understand it anyway.