Use the chain rule to find where First the pieces: δω əx θω მყ dw дz dx dt dz dt = dw dt || || || = = Now all together:

[answerhappygod]

1 (137.37 KiB) Viewed 13 times

Use the chain rule to find where First the pieces: δω əx θω მყ dw дz dx dt dz dt = dw dt || || || = = Now all together: || dw dt Əw dx dw dy + dx dt dy dt Əw dz Əz dt w = x¹y¹ + y³z¹, x = et, y = et sint, z = et cos t is too horrible to write down (correctly).