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Last updated on August 5th, 2025

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Derivative of 5e^(5x)

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We use the derivative of 5e^(5x) to understand how the exponential function changes in response to a slight change in x. Derivatives help us calculate profit or loss in real-life situations. We will now talk about the derivative of 5e^(5x) in detail.

Derivative of 5e^(5x) for US Students
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What is the Derivative of 5e^(5x)?

We now understand the derivative of 5e^(5x).

 

It is commonly represented as d/dx (5e^(5x)) or (5e^(5x))', and its value is 25e^(5x).

 

The function 5e^(5x) has a clearly defined derivative, indicating it is differentiable within its domain. The key concepts are mentioned below:

 

Exponential Function: (e^(x) is the base function).

 

Chain Rule: Rule for differentiating composite functions like 5e^(5x).

 

Constant Factor Rule: The effect of constants on differentiation.

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Derivative of 5e^(5x) Formula

The derivative of 5e^(5x) can be denoted as d/dx (5e^(5x)) or (5e^(5x))'.

 

The formula we use to differentiate 5e^(5x) is: d/dx (5e^(5x)) = 25e^(5x)

 

The formula applies to all x.

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Proofs of the Derivative of 5e^(5x)

We can derive the derivative of 5e^(5x) using proofs. To show this, we will use the rules of differentiation. There are several methods we use to prove this, such as:

 

Using Chain Rule

Using Constant Factor Rule We will now demonstrate that the differentiation of 5e^(5x) results in 25e^(5x) using the above-mentioned methods: Using Chain Rule To prove the differentiation of 5e^(5x) using the chain rule, We use the formula: Let f(x) = e^(5x) Then, using the chain rule, d/dx (e^(5x)) = e^(5x) * d/dx(5x) = e^(5x) * 5 Now, consider g(x) = 5e^(5x) Using the constant factor rule: d/dx (5e^(5x)) = 5 * d/dx (e^(5x)) = 5 * (5e^(5x)) = 25e^(5x) Using Constant Factor Rule We will now prove the derivative of 5e^(5x) using the constant factor rule. The step-by-step process is demonstrated below: Given that, g(x) = 5e^(5x) Using the constant factor rule, where the derivative of a constant multiplied by a function is the constant multiplied by the derivative of the function: d/dx (5e^(5x)) = 5 * d/dx (e^(5x)) Using the chain rule as shown earlier, we find: d/dx (e^(5x)) = 5e^(5x) Thus, d/dx (5e^(5x)) = 5 * 5e^(5x) = 25e^(5x) Hence, proved.

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Higher-Order Derivatives of 5e^(5x)

When a function is differentiated several times, the derivatives obtained are referred to as higher-order derivatives. Higher-order derivatives can be a little tricky. To understand them better, think of a car where the speed changes (first derivative) and the rate at which the speed changes (second derivative) also changes. Higher-order derivatives make it easier to understand functions like 5e^(5x). For the first derivative of a function, we write f′(x), which indicates how the function changes or its slope at a certain point. The second derivative is derived from the first derivative, which is denoted using f′′(x). Similarly, the third derivative, f′′′(x) is the result of the second derivative, and this pattern continues. For the nth Derivative of 5e^(5x), we generally use f n(x) for the nth derivative of a function f(x), which tells us the change in the rate of change (continuing for higher-order derivatives).

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Special Cases:

When the x is negative infinity, the function approaches zero because e^(5x) approaches zero as x approaches negative infinity. When the x is zero, the derivative of 5e^(5x) = 25e^(0) = 25.

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Common Mistakes and How to Avoid Them in Derivatives of 5e^(5x)

Students frequently make mistakes when differentiating 5e^(5x). These mistakes can be resolved by understanding the proper solutions. Here are a few common mistakes and ways to solve them:

Mistake 1

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Not using the Chain Rule

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Students may forget to apply the chain rule when differentiating compositions like 5e^(5x). Ensure that each step is written in order. Students might think it is awkward, but it is important to avoid errors in the process.

Mistake 2

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Forgetting to Multiply by the Derivative of the Inner Function

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They might not remember to multiply by the derivative of the inner function (5x), which is 5. It's crucial to remember that chain rule requires the derivative of the outer function times the derivative of the inner function.

Mistake 3

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Incorrect use of Constant Factor Rule

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While differentiating functions such as 5e^(5x), students misapply the constant factor rule. For example: Incorrect differentiation: d/dx (5e^(5x)) = 5e^(5x). To avoid this mistake, remember that the constant factor rule states that you multiply the constant by the derivative of the function.

Mistake 4

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Not writing Constants and Coefficients

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There is a common mistake where students at times forget to multiply the constants placed before e^(5x). For example, they incorrectly write d/dx (5e^(5x)) = e^(5x). Students should check the constants in the terms and ensure they are multiplied properly. For e.g., the correct equation is d/dx (5e^(5x)) = 25e^(5x).

Mistake 5

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Confusing Derivatives of Similar Functions

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Students often confuse the derivatives of similar functions like e^(5x) and 5e^(5x). Remember that the derivative of e^(5x) is 5e^(5x), while the derivative of 5e^(5x) is 25e^(5x).

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Examples Using the Derivative of 5e^(5x)

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Problem 1

Calculate the derivative of (5e^(5x)·ln(5x))

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Here, we have f(x) = 5e^(5x)·ln(5x). Using the product rule, f'(x) = u′v + uv′ In the given equation, u = 5e^(5x) and v = ln(5x). Let’s differentiate each term, u′ = d/dx (5e^(5x)) = 25e^(5x) v′ = d/dx (ln(5x)) = 1/x * 5 = 5/x Substituting into the given equation, f'(x) = (25e^(5x)).(ln(5x)) + (5e^(5x)).(5/x) Let’s simplify terms to get the final answer, f'(x) = 25e^(5x)ln(5x) + 25e^(5x)/x Thus, the derivative of the specified function is 25e^(5x)ln(5x) + 25e^(5x)/x.

Explanation

We find the derivative of the given function by dividing the function into two parts. The first step is finding its derivative and then combining them using the product rule to get the final result.

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Problem 2

XYZ Construction Company sponsored the construction of an arch. The height of the arch is represented by the function y = 5e^(5x) where y represents the elevation at a distance x. If x = 0.1 meters, measure the rate of change of height of the arch.

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We have y = 5e^(5x) (height of the arch)...(1) Now, we will differentiate the equation (1) Take the derivative 5e^(5x): dy/dx = 25e^(5x) Given x = 0.1 (substitute this into the derivative) dy/dx at x = 0.1 = 25e^(5*0.1) = 25e^0.5 Using a calculator, e^0.5 is approximately 1.6487 Thus, dy/dx = 25 * 1.6487 ≈ 41.2175 Hence, we get the rate of change of height of the arch at a distance x = 0.1 as approximately 41.2175.

Explanation

We find the rate of change of height at x = 0.1 as approximately 41.2175, which means that at this point, the height of the arch would rise at this rate.

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Problem 3

Derive the second derivative of the function y = 5e^(5x).

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The first step is to find the first derivative, dy/dx = 25e^(5x)...(1) Now we will differentiate equation (1) to get the second derivative: d²y/dx² = d/dx [25e^(5x)] Using the chain rule, d²y/dx² = 25 * d/dx [e^(5x)] = 25 * 5e^(5x) Therefore, d²y/dx² = 125e^(5x) Thus, the second derivative of the function y = 5e^(5x) is 125e^(5x).

Explanation

We use the step-by-step process, where we start with the first derivative. Using the chain rule, we differentiate 25e^(5x). We then substitute the identity and simplify the terms to find the final answer.

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Problem 4

Prove: d/dx ((5e^(5x))^2) = 50e^(5x) * 5e^(5x).

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Let’s start using the chain rule: Consider y = (5e^(5x))^2 To differentiate, we use the chain rule: dy/dx = 2(5e^(5x)) * d/dx [5e^(5x)] Since the derivative of 5e^(5x) is 25e^(5x), dy/dx = 2(5e^(5x)) * 25e^(5x) dy/dx = 50e^(5x) * 5e^(5x) Hence, proved.

Explanation

In this step-by-step process, we used the chain rule to differentiate the equation. Then, we replace 5e^(5x) with its derivative. As a final step, we substitute y = (5e^(5x))^2 to derive the equation.

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Problem 5

Solve: d/dx (5e^(5x)/x)

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To differentiate the function, we use the quotient rule: d/dx (5e^(5x)/x) = (d/dx (5e^(5x)).x - 5e^(5x).d/dx(x))/x² We will substitute d/dx (5e^(5x)) = 25e^(5x) and d/dx (x) = 1 = (25e^(5x).x - 5e^(5x).1)/x² = (25xe^(5x) - 5e^(5x))/x² Therefore, d/dx (5e^(5x)/x) = (25xe^(5x) - 5e^(5x))/x²

Explanation

In this process, we differentiate the given function using the product rule and quotient rule. As a final step, we simplify the equation to obtain the final result.

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FAQs on the Derivative of 5e^(5x)

1.Find the derivative of 5e^(5x).

Using the chain rule and constant factor rule, d/dx (5e^(5x)) = 25e^(5x).

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2.Can we use the derivative of 5e^(5x) in real life?

Yes, we can use the derivative of 5e^(5x) in real life in calculating the rate of growth or decay, especially in fields such as mathematics, physics, and economics.

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3.What happens to the derivative of 5e^(5x) at x = 0?

At x = 0, the derivative of 5e^(5x) is 25e^(0) = 25.

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4.What rule is used to differentiate 5e^(5x)/x?

We use the quotient rule to differentiate 5e^(5x)/x, d/dx (5e^(5x)/x) = (x*25e^(5x) - 5e^(5x)*1)/x².

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

No, they are different. The derivative of e^(5x) is 5e^(5x), while the derivative of 5e^(5x) is 25e^(5x).

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Important Glossaries for the Derivative of 5e^(5x)

Derivative: The derivative of a function indicates how the given function changes in response to a slight change in x. Exponential Function: A function of the form e^(x) where e is the base of natural logarithms. Chain Rule: A rule for differentiating compositions of functions. Constant Factor Rule: A rule that allows the constant factor to be multiplied by the derivative of the function. Quotient Rule: A rule used to differentiate 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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