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Last updated on September 15, 2025

Derivative of e to the x squared

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The derivative of e to the x squared, denoted as d/dx (e^(x²)), is essential for understanding how the function changes as x varies. Derivatives are powerful tools in various applications, from calculating rates of change to modeling real-life situations. We will now explore the derivative of e^(x²) in detail.

Derivative of e to the x squared for US Students
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What is the Derivative of e to the x squared?

To understand the derivative of e to the x squared, we express it as d/dx (e(x²)) or (e(x²))'.

The derivative is 2x * e(x²), indicating that the function is differentiable for all real numbers.

The key concepts include:

Exponential Function: e(x²) is an exponential function of x².

Chain Rule: A differentiation technique necessary because the exponent is a function of x.

Exponential Growth: The function exhibits exponential growth as x increases.

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Derivative of e to the x squared Formula

The derivative of e(x²) is expressed as d/dx (e(x²)) or (e(x²))'.

The formula used to differentiate e(x²) is: d/dx (e(x²)) = 2x * e(x²)

The formula is valid for all real numbers x.

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Proofs of the Derivative of e to the x squared

We can derive the derivative of e(x²) using different methods, such as:

Using the Chain Rule

Using the First Principle We will demonstrate how the differentiation of e(x²) results in 2x * e(x²) using these methods:

 

Using the Chain Rule

To differentiate e^(x²) using the chain rule, we consider the exponent as a function of x. Let u = x², then f(u) = eu and u' = 2x.

Therefore, by the chain rule: d/dx (e(x²)) = d/du (eu) * u' = e(x²) * 2x = 2x * e(x²)

By First Principle We can also prove the derivative using the First Principle, which expresses the derivative as the limit of the difference quotient.

Consider f(x) = e(x²). Its derivative is: f'(x) = limₕ→₀ [f(x + h) - f(x)] / h

Substitute f(x) = e(x²), so f(x + h) = e^((x + h)²): f'(x) = limₕ→₀ [e((x + h)²) - e(x²)] / h

To solve this, we expand (x + h)² and apply the limit.

Ultimately, this results in the derivative 2x * e(x²), aligning with the chain rule proof.

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Higher-Order Derivatives of e to the x squared

Higher-order derivatives are obtained by differentiating a function multiple times.

These derivatives provide insights into the behavior of the function, similar to how speed and acceleration describe a car's motion.

For e(x²), higher-order derivatives can be expressed as follows:

The first derivative is 2x * e(x²), representing the rate of change of the function.

The second derivative is derived from the first derivative, denoted f′′(x).

The third derivative, f′′′(x), follows from the second derivative, and this pattern continues.

For the nth derivative of e(x²), we use fⁿ(x) to represent the nth derivative, indicating the change in the rate of change.

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Special Cases:

When x = 0, the derivative is 0 because e(0²) = 1 and 2x = 0. For large positive or negative x, the derivative grows rapidly due to the exponential function's nature.

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Common Mistakes and How to Avoid Them in Derivatives of e to the x squared

Students often make errors when differentiating e(x²). These mistakes can be resolved by understanding the correct procedures. Here are some common mistakes and solutions:

Mistake 1

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Not Applying the Chain Rule Correctly

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Students might forget to apply the chain rule, leading to incorrect results. When differentiating e(x²), remember that the exponent is a function of x, requiring the chain rule. Always identify the inner function and differentiate it separately.

Mistake 2

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Ignoring the Exponential Function's Nature

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Students may overlook the rapid growth of the exponential function, leading to misinterpretations. Recognize that the derivative 2x * e(x²) grows quickly for large |x|.

Mistake 3

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Misinterpreting the Function's Domain

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e(x²) is defined for all real numbers, but students might mistakenly assume restrictions. Ensure you correctly identify the domain as all real numbers when working with this function.

Mistake 4

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Forgetting to Multiply by the Inner Derivative

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In the application of the chain rule, students may neglect to multiply by the derivative of the inner function (2x). This omission leads to incorrect results. Always check that the inner function is differentiated and multiplied correctly.

Mistake 5

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Confusing e^(x²) with Other Exponential Functions

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Students might confuse e(x²) with ex or other exponential forms, leading to errors. Be clear about the specific form you are differentiating, as each has distinct properties and derivatives.

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Examples Using the Derivative of e to the x squared

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Problem 1

Calculate the derivative of e^(x²) * sin(x).

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Let f(x) = e(x²) * sin(x).

Using the product rule, f'(x) = u′v + uv′.

Here, u = e(x²) and v = sin(x).

Differentiate each term: u′ = d/dx (e(x²)) = 2x * e(x²)

v′ = d/dx (sin(x)) = cos(x)

Substitute into the equation: f'(x) = (2x * e(x²)) * sin(x) + e(x²) * cos(x)

Simplifying gives: f'(x) = 2x * e(x²) * sin(x) + e(x²) * cos(x)

Explanation

We find the derivative by breaking the function into two parts and applying the product rule. Each part is differentiated, then combined to give the final result.

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Problem 2

In a physics experiment, the distance traveled by a particle is modeled by y = e^(x²), where x is time. Find the rate of change of distance at x = 1 second.

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Given y = e(x²), differentiate to find the rate of change:

dy/dx = 2x * e(x²)

Substitute x = 1: dy/dx = 2 * 1 * e(1²) = 2e

Hence, at x = 1 second, the rate of change of distance is 2e.

Explanation

The rate of change at x = 1 is found by substituting into the derivative. This gives the instantaneous rate of change of distance at that point.

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Problem 3

Derive the second derivative of y = e^(x²).

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First, find the first derivative:

dy/dx = 2x * e(x²)

Now differentiate again to find the second derivative:

d²y/dx² = d/dx [2x * e(x²)]

Apply the product rule: = 2 * e(x²) + 2x * (2x * e(x²)) = 2 * e(x²) + 4x² * e(x²)

Simplify to: d²y/dx² = 2e(x²) * (1 + 2x²)

Explanation

We derive the second derivative by applying the product rule to the first derivative. This involves differentiating each component and simplifying.

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Problem 4

Prove: d/dx ((e^(x²))²) = 4x * e^(2x²).

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Let y = (e(x²))² = e(2x²).

Differentiate using the chain rule:

dy/dx = d/dx [e(2x²)] = 2x * e(2x²) * 2 = 4x * e(2x²)

Hence proved.

Explanation

Using the chain rule, we differentiate e(2x²) by considering the inner function 2x². The derivative is verified through substitution and simplification.

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Problem 5

Solve: d/dx (e^(x²)/x).

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Use the quotient rule to differentiate:

d/dx (e(x²)/x) = [(d/dx (e^(x²)) * x) - (e(x²) * 1)] / x²

Substitute d/dx (e(x²)) = 2x * e(x²): = [(2x * e(x²) * x) - e(x²)] / x² = (2x² * e(x²) - e(x²)) / x² = e(x²) * (2x² - 1) / x²

Explanation

The problem is solved using the quotient rule, applying derivatives to numerator and denominator separately, and simplifying the expression for the final result.

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FAQs on the Derivative of e to the x squared

1.Find the derivative of e^(x²).

Using the chain rule, the derivative of e(x²) is 2x * e(x²).

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2.Can the derivative of e^(x²) be applied in real life?

Yes, it can be used to model growth rates and changes over time in various fields, such as finance, biology, and physics.

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3.Is e^(x²) differentiable everywhere?

Yes, e(x²) is differentiable for all real numbers, as its derivative exists everywhere on the real line.

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4.What rule is used to differentiate e^(x²)/x?

The quotient rule is used to differentiate e(x²)/x: d/dx (e(x²)/x) = (x * 2x * e(x²) - e(x²)) / x².

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5.Are the derivatives of e^(x²) and e^x² the same?

No, they differ due to the exponent. The derivative of e(x²) is 2x * e(x²), while e represents (ex)², which is differentiated differently.

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6.How do you find the derivative of (e^(x²))²?

To find the derivative of (e(x²))², rewrite it as e(2x²) and differentiate: d/dx [e(2x²)] = 4x * e(2x²).

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Important Glossaries for the Derivative of e to the x squared

  • Derivative: The derivative of a function represents how that function changes in response to changes in its input.

 

  • Exponential Function: A mathematical function characterized by a constant base raised to a variable exponent, such as e(x²).

 

  • Chain Rule: A fundamental rule in calculus used to differentiate composite functions.

 

  • Product Rule: A rule used in calculus to find the derivative of the product of two functions.

 

  • Quotient Rule: A rule in calculus for differentiating the quotient of two functions.
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Jaskaran Singh Saluja

About the Author

Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.

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Fun Fact

: He loves to play the quiz with kids through algebra to make kids love it.

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