Math Problem Statement

Differentiate. y equals StartRoot e Superscript x Baseline plus 14 EndRoot

Solution

We are tasked with differentiating the function:

y=ex+14.y = \sqrt{e^x + 14}.

Step-by-step Solution:

  1. Rewrite the square root in exponential form: y=(ex+14)1/2.y = (e^x + 14)^{1/2}.

  2. Use the chain rule: The derivative of y=u1/2y = u^{1/2} is: dydx=12u1/2dudx.\frac{dy}{dx} = \frac{1}{2}u^{-1/2} \cdot \frac{du}{dx}.

    Here, u=ex+14u = e^x + 14.

  3. Differentiate u=ex+14u = e^x + 14: The derivative of exe^x is exe^x, and the derivative of 14 is 0. Thus: dudx=ex.\frac{du}{dx} = e^x.

  4. Substitute uu and dudx\frac{du}{dx} into the formula: dydx=12(ex+14)1/2ex.\frac{dy}{dx} = \frac{1}{2}(e^x + 14)^{-1/2} \cdot e^x.

  5. Simplify the result: dydx=ex2ex+14.\frac{dy}{dx} = \frac{e^x}{2\sqrt{e^x + 14}}.

Final Answer:

dydx=ex2ex+14.\frac{dy}{dx} = \frac{e^x}{2\sqrt{e^x + 14}}.

Would you like a detailed explanation of any step or additional examples?


Related Questions:

  1. How do you apply the chain rule to composite functions?
  2. What is the derivative of x+c\sqrt{x + c}?
  3. How does the exponential function exe^x behave during differentiation?
  4. What happens to constants like 14 when differentiated?
  5. How do we simplify derivatives involving square roots?

Tip:

Always check whether the function can be rewritten in simpler forms (e.g., square roots to fractional exponents) to make differentiation more straightforward!

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Math Problem Analysis

Mathematical Concepts

Differentiation
Exponential Functions
Chain Rule
Square Roots

Formulas

Derivative of a square root: d/dx [√u] = (1/2)u^(-1/2) * (du/dx)
Derivative of exponential functions: d/dx [e^x] = e^x

Theorems

Chain Rule

Suitable Grade Level

Grades 11-12