hey, i'm doing a question and im on the final part. I have just found a model which relates population with time.
refined mode: dp/dt=P(0.005-0.008cos(0.02t))
new refined model: P=600e^(0.005t - 0.4 sin(0.02t)
'show that, according to the refined model, the number of ladybirds will decrease intially, and find the smallest number for ladybirds in the greenhouse'
and a table of values is given:
how would i go about answering this question? (my teacher suggested putting dp/dt=0, solving to find t and subbing that value in but not sure how?
how to find something initially decreases and then the smallest number of something Watch
- Thread Starter
- 15-03-2016 01:20
- 15-03-2016 10:32
This is a differential equation question and the data represent conditions to allow you to find the constants of integration. These are separable equations but you need to quote the original question if you want help.
What board and which exam (year and unit) is this?