題組內容
2. (50%) Answer the following questions.
(e) Given the function \( f(x) = x^4 - 8x^2 + 16 \), identify the critical points and determine their nature (local minimum, maximum, or saddle point).
2. (50%) Answer the following questions.
(e) Given the function \( f(x) = x^4 - 8x^2 + 16 \), identify the critical points and determine their nature (local minimum, maximum, or saddle point).