Answer:
3:
4:
Step-by-step explanation:
Question 3 can be re-written as:
which equals:
Question 4 can be re-written as:
Doing the first 2 brackets gives us:
Expanding these two:
Simplifying it:
At the bank, Sheila made 6 deposits, each in the same amount. Her sister Sherri made 5 deposits, each in the same amount. Each o
1 answer:
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The ODE has an equilibrium point at
We want to be an unstable equilibrium solution - in other words, we want all solutions with initial condition
for
near 2 to diverge from
- so
.
Divergence from would require that for
, any solution is increasing, and for
, and solution is decreasing. In order for that to happen, we need
if , and
if .
Now we just pick to satisfy these conditions. An easy choice is
, which forces
, so that one possible ODE would be
I've attached a plot of the slope field to demonstrate the behavior of the solutions.
