1. Problem: Find the derivative of the function $$f(x) = 3x^2 + 3\sqrt[3]{x} - \frac{2}{x^3}$$
2. Formula and rules:
- Power rule: $$\frac{d}{dx} x^n = nx^{n-1}$$
- Derivative of a constant times a function: $$\frac{d}{dx} [cf(x)] = c f'(x)$$
- Derivative of a sum: $$\frac{d}{dx} [f(x) + g(x)] = f'(x) + g'(x)$$
- Rewrite roots and fractions as powers: $$\sqrt[3]{x} = x^{1/3}$$ and $$\frac{1}{x^3} = x^{-3}$$
3. Apply the power rule to each term:
- $$\frac{d}{dx} 3x^2 = 3 \cdot 2x^{2-1} = 6x$$
- $$\frac{d}{dx} 3x^{1/3} = 3 \cdot \frac{1}{3} x^{1/3 - 1} = x^{-2/3}$$
- $$\frac{d}{dx} \left(-2x^{-3}\right) = -2 \cdot (-3) x^{-3 - 1} = 6x^{-4}$$
4. Combine the derivatives:
$$f'(x) = 6x + x^{-2/3} + 6x^{-4}$$
Final answer:
$$\boxed{f'(x) = 6x + x^{-2/3} + 6x^{-4}}$$
Derivative Function Fef45F
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