3. Evaluate the integral x³ - 2x? – 4 dr x³ – 2x? |

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A: To find out the integration.

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A: A detailed solution is given below.

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A: Solving the problem by finding the value of the limit.

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A: Use derivative and unit tangent formula for finding it.

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A: Please refer to the image below

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A: this is converegent so the sum S = 1/(1-8) S = -1/7 S = -0.1429