Math Problem Statement

Evaluate the derivative of F(x) = ∫[x to x^2] e^(t^2) dt.

Solution

The problem involves a definite integral function F(x)F(x) and appears to require evaluating F(x)F'(x), the derivative of F(x)F(x). Let's analyze the given function and its derivative.

The Function:

F(x)=xx2et2dtF(x) = \int_x^{x^2} e^{t^2} \, dt

Step-by-Step Solution:

  1. Apply the Leibniz Rule for differentiation of an integral with variable limits: F(x)=ddxa(x)b(x)f(t)dt=f(b(x))b(x)f(a(x))a(x)F'(x) = \frac{d}{dx} \int_{a(x)}^{b(x)} f(t) \, dt = f(b(x)) \cdot b'(x) - f(a(x)) \cdot a'(x) Here:

    • a(x)=xa(x) = x, so a(x)=1a'(x) = 1,
    • b(x)=x2b(x) = x^2, so b(x)=2xb'(x) = 2x,
    • f(t)=et2f(t) = e^{t^2}.
  2. Substitute the Limits into the Leibniz Rule: F(x)=e(x2)22xex21F'(x) = e^{(x^2)^2} \cdot 2x - e^{x^2} \cdot 1

  3. Simplify the expression: F(x)=2xex4ex2F'(x) = 2x e^{x^4} - e^{x^2}

Final Answer:

F(x)=2xex4ex2F'(x) = 2x e^{x^4} - e^{x^2}

Would you like a detailed explanation of any step or related concepts?


5 Related Questions:

  1. What is the Leibniz rule for differentiating integrals with variable limits?
  2. How do you compute higher-order derivatives of functions like F(x)F(x)?
  3. What are some examples of definite integrals with variable limits?
  4. How does et2e^{t^2} behave in integrals, given it cannot be expressed in elementary terms?
  5. Can this problem be extended to multivariable calculus scenarios?

Tip:

When dealing with integrals with variable limits, always check if the Fundamental Theorem of Calculus or Leibniz Rule applies to simplify differentiation.

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Math Problem Analysis

Mathematical Concepts

Integral Calculus
Differentiation
Variable Limits of Integration
Exponential Functions

Formulas

Leibniz Rule for differentiation of an integral with variable limits: d/dx ∫[a(x) to b(x)] f(t) dt = f(b(x)) * b'(x) - f(a(x)) * a'(x)

Theorems

Leibniz Integral Rule

Suitable Grade Level

Undergraduate Calculus or Advanced High School (Grades 11-12)