- #1
- 6
- 0
[tex]\underbrace{d}_{dt}[/tex] ([tex]\dot{x}[/tex])[tex]^{2}[/tex] = 2[tex]\ddot{x}[/tex] ??? or is it just 2[tex]\dot{x}[/tex] ?
Ohhh!no, that would be ∂L/∂t
for ∂L/∂θ', remember that θ' is just a symbol, you can replace it by x (or anything), and forget the '