Daniels Norris
05/31/2024 · Middle School
Q. \( 10[\mathrm{CO} 4] \) Find the maxima and minima of the following functions, if exist: \( \begin{array}{l}\text { a) } f(x)=x^{3}-3 x^{2}+2 \\ \text { b) } f(x)=x^{2}+1 \\ \text { c) } f(x)=3 x^{3}-9 x+1\end{array} \)
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**Maxima and Minima of Given Functions:**
- **a) \( f(x) = x^{3} - 3x^{2} + 2 \):**
- **Local Maximum:** \( x = 0 \), \( f(0) = 2 \)
- **Local Minimum:** \( x = 2 \), \( f(2) = -2 \)
- **b) \( f(x) = x^{2} + 1 \):**
- **Global and Local Minimum:** \( x = 0 \), \( f(0) = 1 \)
- **No Maximum** exists
- **c) \( f(x) = 3x^{3} - 9x + 1 \):**
- **Local Maximum:** \( x = -1 \), \( f(-1) = 7 \)
- **Local Minimum:** \( x = 1 \), \( f(1) = -5 \)
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