Is dy/dx a fraction?
5:53
So Why Do We Treat It That Way?
8:51
the last question on my calc 2 final
11:24
delta y vs. dy (differential)
14:50
finally 0^0 approaches 0 (after 6 years!)
4:37
Why do integrals always have a dx?
33:16
exact value of sin(3 degrees)
13:33
[지식in] dy/dx 는 분수일까 아닐까?
32:04