A critical point for a function \( f \) is a value \( c \) in the domain of \( f \) where \( f'(c) = 0 \) or \( f'(c) \) does not exist. Choose the statement that presents the critical points of $$ f(x) = x^{3/5}(4 - x) $$
- 0 and 2/3
- 2/3 and 4/3
- 4/3 and 3/2
- 0 and 3/2
- None of the above.
Original idea by: Rubens de Castro Pereira
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