1 / 11

Section 3.4

Section 3.4. The Chain Rule. One of THE MOST POWERFUL Rules of Differentiation. The chain rule allows you to take derivatives of compositions of functions that may be hard or even impossible to differentiate with previous rules only.

carterk
Download Presentation

Section 3.4

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Section 3.4 The Chain Rule

  2. One of THE MOST POWERFUL Rules of Differentiation The chain rule allows you to take derivatives of compositions of functions that may be hard or even impossible to differentiate with previous rules only. Examples: not much fun, but doable with previous techniques Previously impossible (Unless you want to try to definition)

  3. If y=f(u) is a differentiable function of u, and u=g(x) is a differentiable function of x, then y=f(g(x)) is a differentiable function of x and dy/dx = dy/du du/dx OR The Chain Rule

  4. What does this mean? When taking the derivative of a composite function, you first take the derivative of the outside function at the inner function and then multiply by the derivative of the inner function.

  5. Common Types 1)One of the most common types of composite functions is What the chain rule tells us to do in this case is take the derivative with respect to the outside exponent, and leave the inner function alone. Then, we multiply by the derivative of the inner function (what was being raised to the power)

  6. Examples:

  7. What about Trig functions and Exponentials?

  8. Examples

  9. Exponentials and Logarithms Let a be a positive real number not = 1 and let u be a differentiable function of x.

  10. More Examples:

  11. And more examples… The chain rule can be used in conjunction with both product and quotient rules. You will need to decide what you should do first.

More Related