Suppose .
Find the value of the expression in terms of the variable . (Enter the terms in the order given.)
+
+
+
help (formulas)
Simplify your answer to the previous part and enter a differential equation in terms of the dependent variable satisfied by . Enter the derivatives of using prime notation ().
=
help (formulas)
Is a solution to your differential equation in the previous part?
Choose
Yes
No
Be sure you can justify your answer.
You can earn partial credit on this problem.