Final answer:
To find f'(8) for f(x) = 1/x^5, use the limit definition of the derivative and simplify the expression.
Step-by-step explanation:
To find the derivative of f(x) = 1/x^5 at x = 8, we can use the limit definition of the derivative. The limit definition states that f'(a) is equal to the limit as h approaches 0 of (f(a + h) - f(a))/h. Let's plug in the values into the formula:
f'(8) = lim(h->0) [(1/(8 + h)^5 - 1/8^5)/h]
Next, let's simplify the expression:
Apply the limit as h approaches 0.