# Integral product rule? | Summary and Q&A

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October 9, 2018
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blackpenredpen
Integral product rule?

## TL;DR

Demonstrating how to find two functions, F and G, such that the integral of F times G is equal to the integral of F times the integral of G.

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### Q: How does the video demonstrate the product rule for integrals?

The video shows how to find two functions, F and G, such that the integral of F times G is equal to the integral of F times the integral of G. It begins by selecting a specific function for F (in this case, X) and determines the corresponding function for G using differentiation and integration techniques.

### Q: Are there any restrictions on the functions F and G in order for the rule to work?

Yes, F and G should be non-constant functions. If either of the functions is a constant, the rule will not hold.

### Q: How is the differential equation obtained in the video?

By differentiating the equation that involves the derivatives of G, a differential equation is obtained. This equation is then solved to find the function G.

### Q: Can the process shown in the video be applied to any pair of functions F and G?

No, the process shown in the video will not work for all possible pairs of functions F and G. It is only applicable to specific pairs of functions that satisfy certain conditions.

## Summary & Key Takeaways

• The video discusses how to find a pair of non-constant functions, F and G, where the integral of F times G is equal to the integral of F times the integral of G.

• The video uses a specific example where F is equal to X and then determines the corresponding function for G.

• By differentiating the equation involving the derivatives of G, a differential equation is obtained, which is then solved to find the function G.

• The final result is a pair of functions F and G that satisfy the desired property.