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To do that, he has use 1/x, which is ln(x). Thinking about how to evaluate functions this way.
When using substitution in definite integrals, we must make sure take care of the boundaries integration. Understanding that a function can be defined using definite integral. View more lessons or pract.
We learned that definite integrals give us the area under curve and above xaxis. Practice this lesson yourself on khanacadem. A finely tuned example demonstrating how the arc length formula works.
In this case, the. Practice this lesson yourself on. Sal finds the definite integral of (6+x)/x between 2 and 4.