Math Problem Statement

For what value of x does the function  f (x) have a critical point if

f (x)  =  e x10/10 + 7px

Answer with an expression that includes p.

Solution

To find the critical points of the function f(x)=ex1010+7pxf(x) = \frac{e^{x^{10}}}{10} + 7px, we first need to compute the derivative and set it equal to zero.

  1. Differentiate f(x)f(x): f(x)=ddx(ex1010)+ddx(7px)f'(x) = \frac{d}{dx} \left( \frac{e^{x^{10}}}{10} \right) + \frac{d}{dx}(7px)

    The derivative of ex1010\frac{e^{x^{10}}}{10} is: 110ddx(ex10)=110ex1010x9=x9ex10\frac{1}{10} \cdot \frac{d}{dx}(e^{x^{10}}) = \frac{1}{10} \cdot e^{x^{10}} \cdot 10x^9 = x^9 e^{x^{10}}

    The derivative of 7px7px is: 7p7p

    Therefore, the derivative of f(x)f(x) is: f(x)=x9ex10+7pf'(x) = x^9 e^{x^{10}} + 7p

  2. Set the derivative equal to zero to find the critical points: x9ex10+7p=0x^9 e^{x^{10}} + 7p = 0

  3. Solve for xx: x9ex10=7px^9 e^{x^{10}} = -7p

Thus, the value of xx that satisfies this equation is determined by solving this transcendental equation for xx in terms of pp. However, it cannot be solved in terms of elementary functions, so the critical point expression involves this implicit relationship.

Would you like more details on solving this type of equation or expanding the analysis?

Here are 5 related questions:

  1. How do critical points relate to the behavior of a function?
  2. Can the second derivative test be used here to classify critical points?
  3. What are transcendental equations, and how are they typically solved?
  4. How does ex10e^{x^{10}} affect the nature of the function as xx increases or decreases?
  5. What role does the constant pp play in shifting the critical points?

Tip: When dealing with transcendental equations, numerical methods like Newton's method are often useful for approximating solutions.

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Math Problem Analysis

Mathematical Concepts

Calculus
Derivatives
Transcendental Equations
Critical Points

Formulas

f'(x) = x^9 e^{x^{10}} + 7p
Critical points are found by setting the derivative equal to zero.

Theorems

Critical point theorem: f'(x) = 0 at critical points.
Transcendental equation solving.

Suitable Grade Level

College Level