How much of an advantage?

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Discus: SAT/ACT Tests and Test Preparation: October 2003 Archive: How much of an advantage?
 By Zechs (Zechs) on Monday, October 20, 2003 - 10:13 pm: Edit

For the mathIIC, how much of an advantage will having a TI89 give?

It will probably save time, but to what extent?

Do I have enough time to master the 89 before Nov. 1?

Does it solve derivatives? (chain rule, product quotient rule etc.) Is it useful for calculus?

I would appreciate any info.

 By Jason817 (Jason817) on Monday, October 20, 2003 - 10:21 pm: Edit

it does everything for calculus. Yes, EVERYTHING. For math 2c, it helps A LOT. It gives me a good 50-60 points alone due to timesaving and less stupid mistakes because it solves for x for you.

 By Zechs (Zechs) on Monday, October 20, 2003 - 10:46 pm: Edit

Can you give me some examples for the calculus?

Thanks Jason

 By Jason817 (Jason817) on Monday, October 20, 2003 - 11:01 pm: Edit

just plug in any function that is in terms of y, and enter the variable, and bam, youre done.

some for integration, except you can set the limits of integration as well.

same for limits:
lim(x^2+1,x,1) = the limit of (x^2+1) as x approaches 1. It will give you the answer, 2.

 By Zechs (Zechs) on Monday, October 20, 2003 - 11:07 pm: Edit

What about composition functions, such as f of g of x?

Please tell me they can do that too, because it is important for the IIC.

Thanks again Jason.

 By Freudboy (Freudboy) on Monday, October 20, 2003 - 11:11 pm: Edit

u can do composite functions on any graphing calc

 By Anduin (Anduin) on Monday, October 20, 2003 - 11:11 pm: Edit

IIC does not have any calculus questions.

 By Zechs (Zechs) on Monday, October 20, 2003 - 11:17 pm: Edit

f(x) = e^x
g(x) = x/2

then g(f(2))=

How would this be done on an 83+?

CAn a TI89 solve this type? or anything similar?

 By Zechs (Zechs) on Tuesday, October 21, 2003 - 04:08 pm: Edit

bump

 By Interested123 (Interested123) on Tuesday, October 21, 2003 - 04:53 pm: Edit

why would u need a calculator to do that problem? plug 2 in for f(x) to get e^2, then plug e^2 in for g(x) to get e^2/2. You can approximate that answer on an 89 and an 83.

Thats a relatively simple problem for the math 2c and using your calculator for such a problem would undoubtedly slow you down.

 By Zechs (Zechs) on Tuesday, October 21, 2003 - 06:34 pm: Edit

I asked if the CALCULATOR can perform that type operation. If so how can I do it on my CALC? Just got a TI89, and I'm learning how to use it now.

 By Smartmika (Smartmika) on Tuesday, October 21, 2003 - 07:31 pm: Edit

Zechs... if you want to do that, put in each function into the Y= area.

So you have the first equation in Y1 and the second in Y2.

Then go to the home screen, and to do F of G (or the other way around, don't remember), you do Y1(Y2(x)) and it will solve it.

Hope that helps.

Michael

 By Zechs (Zechs) on Wednesday, October 22, 2003 - 09:46 pm: Edit

Does anyone know how to graph an ellipse, for example that has an x and y in the equation that is equal to a number on the TI89?

And what about graphing inequalities with shadings?

And can someone PLEASE explain to me combinations and premutations? I'm really having trouble understanding them.

Thanks Michael and anyone else that might have any info!

 By Zechs (Zechs) on Wednesday, October 22, 2003 - 10:57 pm: Edit

anyone?

 By Zechs (Zechs) on Wednesday, October 22, 2003 - 10:57 pm: Edit

anyone?

 By Volleygenius (Volleygenius) on Thursday, October 23, 2003 - 10:58 am: Edit

an easy way to know whether to use permutation or combination is whether or not order matters. if it does, use permutation; if it does not, use combination

 By Yz16 (Yz16) on Thursday, October 23, 2003 - 11:11 am: Edit

woow
this test should be called the calc skills IIm (the 'm' standing for the little bit of math required).

ow, lame joke.