### Product Rule & Tangent on the TI-89: Raw Transcript

Ok I’m going to do in this video a product rule

with regards to tangent let’s get started

uhm ok to get to my menu you have to press second

alpha put the letters i n d e x in there

press alpha and put the eight and the open and closed parenthesis

press enter and you are into my menu we scroll up or down to where ever you want

but right now I want to get to product rule so I’m going to scroll up to product rule

I show you the formula make sure you write everything down

on your paper just like you see it here you get extra credit

and you get certain partial credit for everything so

ahh you have to press alpha before you enter anything into

my menu lines here so let’s put

alpha x squared times the gold key ya know tangent let’s say two times x

press enter I always show you what you’ve entered

so you can check it if you want and change it if you want

but I say it’s ok and we’re into the menu

notice it converts tangent to the identity and this is always fun to

put this down on your test and get a hundred percent on it

or homework ahh pretty neat huh

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