Partial Fraction Decomposition on TI-89
Raw Transcript
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.
Okay, Partial Fraction Decomposition. Let’s get started, to get to my menu you have to press 2nd alpha to put the i_n_d_e_x in here you have to press alpha to put the 9 (). Press Enter and you’re into my menu. Scroll down to wherever you want all the way up and down.
But I’m at Partial Fractions right now which we want to do and we’re going to enter our function. You always have to Press alpha before you enter anything in a these entry lines in my programs. So Alpha we’re gonna do a quantity of 4 times X plus 9, divided by the quantity X minus 1, times the quantity of x plus 1, times the quantity of X plus 4.
I always show you what you’ve entered so you can change in case you made a mistake and we’re into the problem. You factored the denominator. It’s already factored here but in case it wasn’t, I would. And then you multiply, you multiply by the factor of the denominator. You get these. They’re all exactly right. Mark it down on your paper exactly like you see it. And if x = 1, the idea is that you cancel certain factors, certain variables. And here’s when you put -1 the function here is where they all set.
Mark that on your paper, turns out to be 5=A*(0)+B*(-6)+C*(0) 5=B*(-6) 5/-6. Mark all that on your paper. X equals one which will negate the second term. You mark these all these… put all these in replace or um x in your function there. A couple of them become zeros so that you can solve so a equals 13 tenths. And then you have enough variables, enough answers to solve the other c. Here’s the answer.
Pretty neat, huh? EveryStepCalculus.com. Go to my site, buy my programs and pass calculus.
More Partial Fraction test questions solved on your TI-89 calculator
Partial Fraction Test Question #1
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