Question about Texas Instruments TI-89 Calculator

Using elementary algebria in the **binomial theorem, **I expanded the power **( x + y)^n** into a sum involving terms in the form a x^b y^c. The coefficient of each term is a positive integer, and the sum of the exponents of

Using

(x+y)^6= (x+y)(x+y)(x+y)(x+y)(x+y)(x+y) = x^6+6x^5y+15x^4y^2+20x^3y^3+15x^2y^4+6xy^5+y^6

**Using sigma notation, and factorials for the combinatorial numbers, here is the binomial theorem:**

**The summation sign is the general term. Each term in the sum will look like that as you will see on my calculator display. Tthe first term having k = 0; then k = 1, k = 2, and so on, up to k = n. **

TI-89 Titanium: I want to - oneplusgh_18.jpg

TI-89 Titanium: I want to - oneplusgh_23.jpg

Posted on Jan 04, 2011

(1.08)8

Posted on Feb 24, 2011

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Posted on Jan 02, 2017

You have to type expand((38x-28y)^4,x). See captured images

Jan 04, 2012 | Texas Instruments TI-89 Calculator

The distributions do not exist on the TI 89 Titanium. But you can download an application from the education.ti.com website. It is called tistale.89x. Here is the link to it.

May 27, 2011 | Texas Instruments TI-89 Calculator

how to solve the problem for binomial theorem (1.08)8

Feb 24, 2011 | Texas Instruments TI-92 Plus Calculator

Hi william_kien,

The Ti 89 solves a lot of fraction problems by being in the right mode and, the use of several commands. One of my first problems here at Fixya was to find a solution for, "How do i convert a decimal answer to fractions prefferably with matrixes."

Here the problem was solved just by being in the EXACT mode.

Another fraction nightmare, so I thought was to solve for, "I want to solve a Binomial Theorem problem!" You have to go to the end of the problem but, I solved it just by the use of the expand command.

The best way to display fraction is in Pretty Print and, in the EXACT mode. Here is a small demonstration of the 3 mode setting in the Ti 89 and, the effect of each to the way a fraction is displayed.

This is a demonstration of the Ti 89 simplifying and, displaying in fractional form in the AUTO mode.

This is a demonstration of the Ti 89 making numbers proper and, displaying them in fractional form while in the EXACT mode.

This demonstration of the Ti 89 not even converting in fractional form and, displaying in the APPROX mode.

You should always use parentheses when entering equations or, fractions into the calculator. Pictured just below you can see how the Ti 89 can miss-interpret what is being entered.

The propFrac command is a great tool to reducing to the simplest form.

propFrac(expression,var). This will return an expression as a

proper expression

Sometime with joining or, combining fractions you have to get the common denominator. As you can see below the comDenom command is a great tool for that.

The Ti 89's ability to compute fractions is only limited to the ability and, knowledge of the person using it. Even though, it has a tendency of making a not so, mathematically inclined person look like they have been doing them all there life.

I just gave several ways I go about solving and, displaying fractions. The best way to display fraction is in Pretty Print and, in the EXACT mode. Sometimes that isn't even enough and, you have to use parentheses and, commands to do the job.

Jan 10, 2011 | Texas Instruments TI-89 Calculator

This may help:

http://en.wikipedia.org/wiki/Binomial_theorem

Rate me, thanks.

http://en.wikipedia.org/wiki/Binomial_theorem

Rate me, thanks.

Jun 19, 2009 | Texas Instruments TI-89 Calculator

Instead of just hitting enter try pushing the diamond key and enter, for the approximation function? Just a thought.

Jun 09, 2009 | Texas Instruments TI-89 Calculator

the comma is close to the "(" and ")" simbols

Sep 01, 2008 | Texas Instruments TI-89 Calculator

Type it like this: solve( equation1 and equation2 and moreEquations, {list of variables to solve for})

Put all of your equations right after the opening parenthesis separated by the word*and*, then a comma, then within curly braces each variable you want to solve for each separated by a comma.

Put all of your equations right after the opening parenthesis separated by the word

Apr 26, 2008 | Texas Instruments TI-89 Calculator

First to solve a problem, write it like this

solve(3/x-2+21/x^2-4=14/x+2,x)

Second, for inverse, do this (note the "y=" part)

solve(y=3x^2 -2x+1,x)

The calculator will rewrite the formula as x = ...

solve(3/x-2+21/x^2-4=14/x+2,x)

Second, for inverse, do this (note the "y=" part)

solve(y=3x^2 -2x+1,x)

The calculator will rewrite the formula as x = ...

Oct 23, 2007 | Texas Instruments TI-89 Calculator

I'm having the same problem:(

I need to solve this urgently, i can't stand always being removing the batteries... please help me!!!

I need to solve this urgently, i can't stand always being removing the batteries... please help me!!!

Oct 16, 2007 | Texas Instruments TI-89 Calculator

May 21, 2014 | Texas Instruments TI-89 Calculator

Feb 17, 2014 | Texas Instruments TI-89 Calculator

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