Question

Differentiate:

Answer 1

\[\LARGE y=\frac{t}{(t-9)^2}\]

Answer 2

quotient rule.

Answer 3

or product rule with t (t-9)^(-2)
whatever you are comfortable with.

Answer 4

Hi, Luigi,
This problem isn't much different from the one you and I discussed earlier. As hartnn has suggested, and I suggested earlier, use the quotient rule.

Let u = the numerator = t. What is du/dt?

Let v = the denominator = (t-9)^2. What is dv/dt? (Be very careful toapply the appropriate differentiation rules here.)