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This is a video from EveryStepCalculus.com
demonstrating how my programs work on a TI-89 Titanium calculator
and other calculators in the TI system for physics and calculus problems
this is an example of finding the derivative of natural log
in my calculus programs and let's get started
in my programs you have to push second alpha
to put in the letters i n d e x and then press alpha to put the eight
and the open closed parenthesis and press enter and you're into my menu
you'll scroll down to log of x derivatives and you want to differentiate it
so you choose that you can integrate it
or solve for x also and we're going to enter a
function here you have to press alpha before you enter
anything into my entry lines here So we press alpha
I'm going to press second and then log
and let's put in ah six times x squared plus seven
I always show you what you've entered
so you can change it in case you made a mistake
I say it's ok and we're finding the derivative
of log of six x squared plus seven the formula is
u prime over u u being what's inside the parenthesis here
here is u here six x squared plus seven the derivative
the derivative of that excuse me
is twelve x and u prime over u
so here's the answer twelve x divided by six x squared plus seven
ahh pretty easy if you know the formula and, but my programs show it
step by step easily like this
pretty neat EveryStepCalculus.com
go to my site buy my programs
and pass calculus