Final answer:
The second derivative of the function f(x) = e^ax is a^2 * e^ax.
Step-by-step explanation:
To find the second derivative of the function f(x) = eax, we can use the chain rule. The first derivative of f(x) is f'(x) = aeax. Now, to find the second derivative, we need to take the derivative of f'(x). Using the chain rule, we get:
f''(x) = d/dx(aeax) = a * d/dx(eax) = a * a * eax = a2 * eax.
Therefore, the second derivative of f(x) = eax is f''(x) = a2 * eax.