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Anonymous Posted on Apr 09, 2014

Inverse chi sqaure on ti 84 - Texas Instruments TI-84 Plus Calculator

5 Related Answers

Anonymous

  • 4 Answers
  • Posted on May 18, 2009

SOURCE: how do i use the inverse log operation on the TI-84

The problem is simple. You're trying to get an [H+] concentration which is obviously going to have a value of some number times ten raised to a negative power. Therefore, you have to insert the negative value of the pH into the 10^(x). When you insert said negative number you will come out with the right answer.
i.e.
The pH of a sample of human blood was calculated to be 7.41. What is the [H+] concentration of the blood?
10^(-7.41) = [H+]
[H+] = 3.9 E-8  
(the answer should only have two sig. figs because the pH has two digits after the decimal.

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k24674

  • 8093 Answers
  • Posted on Sep 13, 2009

SOURCE: calculate inverse module

Hello,
The TI 89 cannot calculate the inverse modulo, but you can enter a program that can do that. I found a link to such program. Here it is.

http://www.cartesionline.it/materiali/algebra_numb_theory.cfm

Hope it helps.

k24674

  • 8093 Answers
  • Posted on Oct 16, 2009

SOURCE: I have a TI 84 plus silver ed. I am trying to find

Hello,
The inverse tangent or arctangent shares the ame key as tan. You access it by pressing [2nd][tan] number [)] [ENTER]. Be warned! The angle value displayed is the same as the one set in [MODE].
Hope it helps

k24674

  • 8093 Answers
  • Posted on Feb 14, 2010

SOURCE: Change TI 84 OS to TI 89 OS??

And why, pray tell, would you do such a thing? You will ruin your Ti84 Plus Silver Edition and will not have a working TI89. Besides, TI connect will refuse to transfer it.
If you like the capabilities of the TI89 Titanium, buy a cheap or used one on e-bay or amazon.com and spare your TI84PLus SE.

k24674

  • 8093 Answers
  • Posted on Apr 13, 2010

SOURCE: how do you graph y = the inverse contangent of x?

The cotangent function is not implemented on the TI84PLUS native OS and consequently you will not find its inverse function on the calculator. However, there exits an equivalence (definition) between arc cotangent(x) and arc tangent (1/x).
Thus cot^(-1)(X)= tan^(-1)(1/X),

Be careful. Since it is a multivariate function, some authors define the principal branch in the domain [0, PI], while others define the domain on [-Pi/2, Pi/2]. You will have to consult your textbook, or the documents you are using to find out the domain of the principal branch.

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Related Questions:

2helpful
1answer

Where is the inverse key on the TI-84 silver edition?

That depends on what you want to invert.

If you want the multiplicative inverse (1/x) then it's the "1-superscript-minus-one" key just below the "MATH" key.

If you want the additive inverse then it's the "(-)" key just to the right of the decimal point key.

If you want the inverse of many of the built-in functions (like the trig functions) then press the "2ND" key at the upper-left before pressing the function key.

For the inverse of some functions you'll have to go through the menus.

If you have a particular inverse in mind, please reply to this post and specify exactly what you'd like to invert.
2helpful
1answer

How do i get inv on my TI-84 Plus caculator

To get the inverse trigonometric functions press the 2nd key then the trig function key. If you'll look at the key legends above the SIN, COS, and TAN keys you'll see the standard math notations for their inverse function.
0helpful
1answer

How to find inv cos with ti-84 plus

Make sure the argument is between negative one and positive one, inclusive. The inverse cosine is defined only for arguments in that domain, anything else will give you a domain error.
1helpful
1answer

There are several applications missing on my ti-84. I don't have tcdf, chi squared cdf, or chi squared GOF test. How can I get these on my calculator?

Those functions are in the DISTR menu, accessible by pressing 2ND [DISTR].

If you need any of them, you can download apps from
http://education.ti.com/educationportal/sites/US/productDetail/us_ti84p.html?bid=7
0helpful
1answer

How to calculate reciprocal on the Ti-84

there is a button on which x(-1) is written,this button is found to the left of the "sin" button.this acts as inverse. for e.g- if you want the inverse of 5, press 5 and then click on that button.
1helpful
1answer

When i try to create an inverse matrix it says i have invalid dim

Hi Robert9004x2,

If you want to examine the matrix you want to inverse and, the one that is given you trouble pressing [2nd] [MATRX]. Then stroll and, select the one you want to look at by pressing, [ENTER]. You'll have to press, [ENTER] again and, matrix should display at the Home screen. At the Home when you get to them your looking for the ones that are not square, like 2 by2 or 4 by 4 etc. You might need to re-edit this matrix so, that it is square.

Your trying to invert a matrix that isn't square you might be using using the proper key sequence to create a inverse matrix. Here what the correct inverse matrix look on the Ti 84 Plus Home screen.

oneplusgh_49.jpg

And pictured below is a Matrix is being inverted by using the ^ and the -1 keys. Which to inverse a Matrix on the Ti 84 Plus you have to use the [x^-1] key.

oneplusgh_50.jpg

This is not the proper way to inverse a Matrix on the Ti 84 Plus. The proper way to inverse of a matrix, the [x-1] key must be used, instead of pressing the sequence [^][-][1]. The [x-1] key is the official inverse key and is located right under the Math key. It is also the same key that you use to get to the matrix menus. The [^][-][1] sequence is only raising the matrix to the -1 power and, will cause an error too. If you need any more help, just post a comment and, I'll respond quickly.


0helpful
1answer

On my ti 84 every time I try to calculate the inverse of my 3x3 matrix it says ERROR: SINGULAR MAT. what should I do?

A singular matrix has no inverse. It's the equivalent of zero: trying to take the inverse of zero is an error. Check the matrix to make sure you have entered it correctly. If the error persists, could you post the matrix in question?
0helpful
1answer

I am using a TI 84 to work on a Matrix problem. After I have pressed 2nd Quit and saved Matrix A, what key strokes do I do to find the inverse

Press 2ND [MATRIX] to bring up the matrix menu. Select the matrix whose inverse you want. Press x^-1 to invert it. x^-1 is on the same key as [MATRIX], the second key down from the ALPHA key on the leftmost column of the keyboard.
0helpful
1answer

I have a TI 84 plus silver ed. I am trying to find out the inverse tangent. How do I get the answer in degrees?

Hello,
The inverse tangent or arctangent shares the ame key as tan. You access it by pressing [2nd][tan] number [)] [ENTER]. Be warned! The angle value displayed is the same as the one set in [MODE].
Hope it helps
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