### Chain Rule Video Transcript

This Video is on Chain Rule Examples, the chain rule, and chain rule calculus

If you see in a given problem, a function under a radical sign, or a function enclosed

in parenthesis where that function is taken to a higher power in other words has an exponent,

or a trig function such as sin, cosine, or tangent where there is something more than

an x in the parenthesis of that trig function, you are using the chain rule.

To get to my menu You have to press second alpha on the Titanium

to enter letters in the home screen, and then you enter the letters i n d e x

press alpha again and enter the eight and the closed parenthesis

Press ENTER and you’re into my menu

You choose “chain rule” by scrolling down to it, or pressing the number before it, in

this case the number five

You are given four things to choose from here One, a function under a radical sign

Two, Anything enclosed in parenthesis to a power

Three, If you are already given “y” and “u”

And Four, the trig functions with something more than an x involved

I’m demonstrating the first option in this video, the function under a radical sign

So press one and you’re into the program

Enter your radical function

Now, If you enter a radical function like I’m doing here, you will be told that you

must change the radical to an exponent function and bring you back to the entry line to do

it. Generally you must always do this in calculus for radicals

So change the function:

for a square root sign, the exponent is a one half , for a cube root sign it would be

one third

I show you what you’ve entered You can change it if you want

I say it’s ok

You write all of this down on your paper or homework

Here’s the formula Here’s the choice for u

And u prime

You back substitute for u

And here’s your answer

Pretty neat huh? EveryStepCalculus.com

Enjoy my programs and pass calculus