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Problem

Use logarithmic differentiation to find the deriv…

02:44

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Problem 46 Easy Difficulty

Use logarithmic differentiation to find the derivative of the function.

$ y = (\sqrt x)^x $


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Frank Lin

01:06

Doruk Isik

Related Courses

Calculus 1 / AB

Calculus: Early Transcendentals

Chapter 3

Differentiation Rules

Section 6

Derivatives of Logarithmic Functions

Related Topics

Derivatives

Differentiation

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Video Thumbnail

04:40

Derivatives - Intro

In mathematics, a derivative is a measure of how a function changes as its input changes. Loosely speaking, a derivative can be thought of as how much one quantity is changing in response to changes in some other quantity; for example, the derivative of the position of a moving object with respect to time is the object's velocity. The concept of a derivative developed as a way to measure the steepness of a curve; the concept was ultimately generalized and now "derivative" is often used to refer to the relationship between two variables, independent and dependent, and to various related notions, such as the differential.

Video Thumbnail

44:57

Differentiation Rules - Overview

In mathematics, a differentiation rule is a rule for computing the derivative of a function in one variable. Many differentiation rules can be expressed as a product rule.

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Video Transcript

in this problem. We are practicing, taking the derivative of a function using log arrhythmic differentiation, and that's going to make finding the derivative of the function were given much easier than a different way that we might use, like the limit definition or chain rule. So we're given the function. Why equals the square root of X rays to the X. Now we can simplify this by saying that this is the same thing is saying X rays to X over to. So the first thing that we're going to do is we'll take the natural log of each side and this is going to help us because we can move the exponents very easily using log properties. So we'll take the natural log of each side. We'll get the natural log of y equals the natural log of X rays to X over to. So now we can bring out that X over to term to get the natural log of y equals X over two times the natural log of X. Now, this is really nice, because we can use product rule now so well, find the derivative on each side will have won over why times by prime equals one half times the natural log of X plus X over two times one over X And again we found this side by using product rule. Now we could simplify that to say that one over. Why times y prime equals one half times and natural log of X plus one half. And now we need why prime by itself. So we would multiply by Why? To get white prime equals y over two times one plus the natural log of X. Now the only thing we have left to do is plug in. Why we know what why is that is the function that we started with. So why prime would be equal to the square root of X raised the X over two times one plus the natural log of X and that is our derivative of the function. I hope that this problem helped you understand a little bit more about lag, arrhythmic differentiation and why we use it and how that you could go through the process of using log properties and differentiation rules. In this case, the product rule

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Calculus: Early Transcendentals

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Related Topics

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Top Calculus 1 / AB Educators
Anna Marie Vagnozzi

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Heather Zimmers

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Lectures

Video Thumbnail

04:40

Derivatives - Intro

In mathematics, a derivative is a measure of how a function changes as its input changes. Loosely speaking, a derivative can be thought of as how much one quantity is changing in response to changes in some other quantity; for example, the derivative of the position of a moving object with respect to time is the object's velocity. The concept of a derivative developed as a way to measure the steepness of a curve; the concept was ultimately generalized and now "derivative" is often used to refer to the relationship between two variables, independent and dependent, and to various related notions, such as the differential.

Video Thumbnail

44:57

Differentiation Rules - Overview

In mathematics, a differentiation rule is a rule for computing the derivative of a function in one variable. Many differentiation rules can be expressed as a product rule.

Join Course
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