Consider the equation
Show that satisfies
(Assume the second derivative exists.)
We differentiate (keeping in mind we must use the chain rule to differentiate since it is a function of ),
Thus, .
Consider the equation
Show that satisfies
(Assume the second derivative exists.)
We differentiate (keeping in mind we must use the chain rule to differentiate since it is a function of ),
Thus, .
I think it should be (9x^2)/y instead of (9x^2)/4y in the fourth equality