Question about Texas Instruments TI-89 Calculator

# I cannot figure out how to do a problem with arc on my ti-83

Posted by on

• Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

• Texas Instru... Master

Sorry but you are not been very clear.
Are you doing some kind of geometry or trying to use the inverse trigonometric functions such as arccos, arcsin, arctan?

If you are doing geometry you should specify what application you are using.

If it concerns the trigonometric functions, on the TI83/TI83Plus these functions are represented as cos^-1, sin^-1, tan^-1.
To access them you press the 2nd (orange/yellow) then cos, sin or tan.

A word of caution:When using any trigonometric function make sure your calculator is configured with the correct angle unit ( degree or radian) your problem calls for.

Good luck,

Hope it helps.

Posted on Aug 19, 2009

• k24674 Oct 31, 2009

OOPS: you are not being very clear.

×

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

×

my-video-file.mp4

×

## Related Questions:

### I can not find the arc key or the INV key

The INV key that you may find on some scientific calculators has, on the TI 83/84/ Plus calculators, an equivalent key marked [2nd].

On the TI83/84 Plus, each trigonometric function has a second marking [SIN^-1], [COS^-1] or [TAN^-1]. To calculate the inverses of trigonometric functions ( arc sine, arc cosine, arc tangent) you press [2nd] followed by the relevant trigonometric function key For example, [2nd] [SIN] displays sin^-1( on the command line.

Unfortunately the hyperbolic functions and their inverses are only accessed through the CATALOG. You press [2nd][0] to open the CATALOG. Then you scroll down the CATALOG list to reach cosh(, cosh^-(, sinh(, sinh^-1(, tanh(, or tanh^-1(.
To speed the search in the catalog, you use the ALPHA keyboard: To reach cosh(, press[PRGM] and you scroll down from there.

Feb 27, 2012 | Texas Instruments TI-84 Plus Calculator

### What is the different between ti-86 and ti-83

The 86 has more memory. It also has some advanced calculus capabilities the 83 doesn't. However you're much more likely to see examples for the 83 in textbooks and other references.

TI-83:
http://www.ticalc.org/basics/calculators/ti-83.html

TI-83 Plus:
http://www.ticalc.org/basics/calculators/ti-83plus.html

TI-86:
http://www.ticalc.org/basics/calculators/ti-86.html

Aug 09, 2011 | Texas Instruments TI-86 Calculator

### Cos -1

Is there a question? Why so secretive, spill it out.
To access the arc cosine (cos^-1) press 2nd COS and enter the argument. Make sure you are within range, because the domain of arc cosine is from -1 to +1. Any value outside of this closed interval will warrant a DOMAIN ERROR.

May 29, 2011 | Texas Instruments TI-83 Plus Calculator

### TI-83 Plus calculator--fractions

just type it in, e.g. 1/2 or 3/5. if you want to have answers display as fractions, press [MATH] ENTER.

May 07, 2009 | Texas Instruments TI-83 Plus Calculator

### Cos A + 4.37/7.25 I cannot figure how to solve

Here's how in 4 easy steps (I substituted "A" for "X", my more favorite variable.):

1.) Set calculator to "Degree"
2.) Given-- (cos( X))
3.) Given--(4.37/7.25)==> (437/725)

Apr 15, 2009 | Texas Instruments TI-83 Plus Calculator

### Instructions And Usage Of TI-83 Plus Calculator

Mar 11, 2009 | Texas Instruments TI-83 Plus Calculator

### TI-83 Plus silver edition won't turn on.

the screen may be at the lowest dim setting, try turning it on, then pressing the 2nd key and then hold the up key and see if anything appears, if not let me know and I will try to figure out something else, I own a 83, 84, and 89 so it shouldn't be too hard to figure out

Mar 16, 2008 | Texas Instruments TI-83 Plus Calculator

## Open Questions:

#### Related Topics:

480 people viewed this question

Level 3 Expert

Level 2 Expert