Product rule for integration?

It is the best method for finding integrals of the form ∫[f(x)g(x)]d(x). As for finding ∫[f(x)/g(x)]dx, there is no specific rule similar to the product rule for differentiation. However, it may involve using a natural log function depending on the quotient.
  • #1
Manni
42
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How would I find ∫[f(x)g(x)]d(x)? Similarly, how would I find ∫[f(x)/g(x)]dx?

Is there a similar rule to be applied here as in the product rule for differentiation?
 
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  • #2
  • #3
Gotcha! Thanks a lot!
 
  • #4
Integration by parts is the integration counterpart to the product rule in differentiation.
 

What is the product rule for integration?

The product rule for integration is a mathematical rule used to find the integral of a product of two functions. It states that the integral of the product of two functions is equal to the first function multiplied by the integral of the second function plus the second function multiplied by the integral of the first function.

How do you use the product rule for integration?

To use the product rule for integration, you first identify the two functions that are being multiplied together. Then, you use the formula: ∫(f(x)g(x))dx = f(x)∫(g(x))dx + g(x)∫(f(x))dx. You then find the integrals of the two functions individually and plug them back into the formula to get the final answer.

Can the product rule for integration be used for more than two functions?

No, the product rule for integration can only be used for two functions at a time. If there are more than two functions being multiplied together, the rule must be applied multiple times.

What is the difference between the product rule for differentiation and integration?

The product rule for differentiation and integration are inverse operations, meaning they have opposite effects. The product rule for differentiation is used to find the derivative of a product of two functions, while the product rule for integration is used to find the integral of a product of two functions.

Why is the product rule for integration important?

The product rule for integration is important because it allows us to find the integral of a product of two functions, which is a commonly occurring problem in mathematics and science. It is also a fundamental rule in calculus and is used in many other integration techniques.

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