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Use the chain rule to find the derivative of the following function.𝑓(𝑥)=3(𝑥3+4𝑥2−𝑥)100

Question

Use the chain rule to find the derivative of the following function.𝑓(𝑥)=3(𝑥3+4𝑥2−𝑥)100

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Solution

To find the derivative of the function f(x) = 3(x^3 + 4x^2 - x)^100 using the chain rule, follow these steps:

  1. Identify the outer function and the inner function. In this case, the outer function is f(u) = 3u^100 and the inner function is g(x) = x^3 + 4x^2 - x.

  2. Find the derivative of the outer function with respect to u, f'(u) = 300u^99.

  3. Find the derivative of the inner function with respect to x, g'(x) = 3x^2 + 8x - 1.

  4. Apply the chain rule, which states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function, times the derivative of the inner function. In mathematical terms, (f(g(x)))' = f'(g(x)) * g'(x).

  5. Substitute the expressions found in steps 2 and 3 into the chain rule equation: (f(g(x)))' = 300(x^3 + 4x^2 - x)^99 * (3x^2 + 8x - 1).

So, the derivative of the function f(x) = 3(x^3 + 4x^2 - x)^100 is f'(x) = 300(x^3 + 4x^2 - x)^99 * (3x^2 + 8x - 1).

This problem has been solved

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