Question

Differentiation help please, expression posted in comments

Answer 1

\[-d \Omega \sin \phi + L \theta^{'} \cos (\theta) dt\]

Omega is the derivative with respect to t of phi
And Theta prime is the derivative of theta with respect to time

I hope this makes sense!

Answer 2

What's the question here?

Answer 3

How do I differentiate −dΩsinϕ+Lθ′cos(θ) with respect to t please?

Answer 4

And what is L there...
a constant?

Answer 5

I think L and d are constants

Answer 6

I think it is
-d(∆'sin¢sin¢+∆ cos¢) +L(x"cosx- x'sinx)
I'm representing omega by∆ and phi by ¢ and theta by x.

Answer 7

You have to use chain rule twice there

Answer 8

Ah thank you! I completely forgot to do chain rule :/

Answer 9

Welcome