# Thread: Derivatives: Solving a Related Rate Problem help?

1. ## Derivatives: Solving a Related Rate Problem help?

Can anyone help me with this online assignment? I have went through the first part but the 2nd part seem pretty confusing. Can anyone give me tips as to how to start it? I have to select right answers.
http://img25.imageshack.us/img25/9213/diffculty.jpg

THANKS!
EDIT: the "N" stands for pi.
how come the answer come up as sin to the power of (2pi/4)? sin^...
You can not have sin, cos to the power of something.. or did i interpret it wrong again? thanks!

2. Originally Posted by ASUSpro
Can anyone help me with this online assignment? I have went through the first part but the 2nd part seem pretty confusing. Can anyone give me tips as to how to start it? I have to select right answers.
http://img25.imageshack.us/img25/9213/diffculty.jpg

THANKS!
EDIT: the "N" stands for pi.
how come the answer come up as sin to the power of (2pi/4)? sin^...
You can not have sin, cos to the power of something.. or did i interpret it wrong again? thanks!
Sorry but MHF policy is to not knowingly help with work that counts towards a student's final grade (and in my experience on-line assignments fall in that category) - it's meant to be the student's own work.