Derivative of an integral with both limits as functions of x?

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SUMMARY

The discussion focuses on finding the derivative of the integral \(\int_{tan(x)}^{2x^{2}} \frac {1}{\sqrt{1+t^{3}}} dt\). The Fundamental Theorem of Calculus (FTC) is applied, specifically the formula \(\frac{d}{dx} \int_{a}^{x} f(t) dt = f(x)\). Participants emphasize the need to express the integral as the difference of two integrals, each with a single limit that is a function of \(x\). The chain rule is highlighted as essential for correctly differentiating the integral with variable limits.

PREREQUISITES
  • Understanding of the Fundamental Theorem of Calculus (FTC)
  • Knowledge of differentiation techniques, including the chain rule
  • Familiarity with integral calculus and definite integrals
  • Basic understanding of functions and their derivatives
NEXT STEPS
  • Study the application of the Fundamental Theorem of Calculus in depth
  • Learn how to differentiate integrals with variable limits using the chain rule
  • Explore examples of integrals with both limits as functions of \(x\)
  • Review the properties of integrals and their relationship to antiderivatives
USEFUL FOR

Students studying calculus, particularly those focusing on integral calculus and differentiation techniques, as well as educators seeking to clarify the application of the Fundamental Theorem of Calculus.

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Homework Statement



Find the derivative of:

[tex]\int_{tan(x)}^{2x^{2}} \frac {1}{\sqrt{1+t^{3}}} dt[/tex]

Homework Equations



[tex]\frac{d}{dx} \int_{a}^{x} f(t) dt = f(x)[/tex]

The Attempt at a Solution



I don't have an attempt because I do not know how to handle the problem... the FTC statement in 'Relevant equations' is only for the integral from a constant to a function of x, right? Help!
 
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You can pick a constant and write that integral as the difference of two integrals, each of which only has a single limit that is a function of x.
 
Recall that the integral of f from a to b equals F(b) - F(a), where F' = f. Suppose there exists a function G(x) with the property that G'(x) = 1/(1+x^3). Don't forget the chain rule.
 

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