mathland wrote:zetafunc wrote:You can calculate what each of those four terms are.
Sorry but I was not able to figure it out. Boy, do I miss yahoo answers.
Just take the derivative of each of those functions - it's the chain rule, expressed graphically.
I will play with this some more. If necessary, I will return here to continue the discussion.
]]>zetafunc wrote:You can calculate what each of those four terms are.
Sorry but I was not able to figure it out. Boy, do I miss yahoo answers.
Just take the derivative of each of those functions - it's the chain rule, expressed graphically.
]]>You can calculate what each of those four terms are.
Sorry but I was not able to figure it out. Boy, do I miss yahoo answers.
]]>Hint:
I know that much. What else can you do?
]]>θ(t) = (pi/3)cos[(1/2)•sqrt{(2k/5}t]
Unpick the separate functions from the inside to the outside:
u = (2k/5) t
v = u^(0.5) [ do you recognise the use of a power for a square root?]
w = v/2
θ = (pi/3)cos(w).
A four step chain is a tough one if you haven't done any two step ones first.
Bob
I am not familiar with a four step chain rule process. Can you show me how this is done for study notes?
]]>Unpick the separate functions from the inside to the outside:
u = (2k/5) t
v = u^(0.5) [ do you recognise the use of a power for a square root?]
w = v/2
θ = (pi/3)cos(w).
A four step chain is a tough one if you haven't done any two step ones first.
Bob
]]>(a) Find the angular velocity ω = dθ/dt of the disk at any time t.
(b) What is the angular velocity at t = 3?
For part (a), I gotta find the derivative using the
chain rule. As you can see, the function is not simplistic.
Can someone get me started?
For part (b), I must evaluate the derivative found in part (a)
by letting t = 3. Yes?
Thanks
]]>