Question about Texas Instruments TI-83 Plus Calculator

Cos A + 4.37/7.25 I cannot figure how to solve this problem using my TI 83 plus calculator.

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)

4.) Add--(cos( X)+ (437/725)

Posted on May 15, 2009

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Posted on Jan 02, 2017

SOURCE: 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.

Posted on May 08, 2009

Make sure you have the proper angle mode set. Press MODE and check the third line.

Feb 03, 2014 | Texas Instruments TI-83 Plus Calculator

do you mean (-)Cosine(X), or arcCosine(X)

The first is graphed as "-cos(X" (no quotes)

The second as "cos-1(x" (press 2nd Cos to access arcCosine)

The first is graphed as "-cos(X" (no quotes)

The second as "cos-1(x" (press 2nd Cos to access arcCosine)

Aug 07, 2011 | Texas Instruments TI-83 Plus Calculator

First, make sure you have the appropriate angular mode set. To change the angular mode, press MODE, use the arrow keys to highlight either "RADIAN" or "DEGREE" on the third line, press ENTER, then press 2ND [QUIT].

Press the appropriate sin, cos, or tan key (two rows above the 7, 8, and 9 keys), enter the angle, close the parenthesis, and press ENTER. For example, to calculate the sin of 2.1, press

SIN 2 . 1 ) ENTER

Press the appropriate sin, cos, or tan key (two rows above the 7, 8, and 9 keys), enter the angle, close the parenthesis, and press ENTER. For example, to calculate the sin of 2.1, press

SIN 2 . 1 ) ENTER

Jun 07, 2011 | Texas Instruments TI-83 Plus Calculator

Reset your TI:
2nd --> MEM --> Reset --> All Memory

If this don't work try it with new batteries. If this don't help it seems to be broken.

If this don't work try it with new batteries. If this don't help it seems to be broken.

Mar 14, 2011 | Texas Instruments TI-83 Plus Calculator

There are no keys for cosecant, secant, and cotangent. You can calculate those ratios as

csc(x) = 1/sin(x)

sec(x) = 1/cos(x)

cot(x) = 1/tan(x)

Simply calculate the trig ratio on the right and then take its reciprocal.

csc(x) = 1/sin(x)

sec(x) = 1/cos(x)

cot(x) = 1/tan(x)

Simply calculate the trig ratio on the right and then take its reciprocal.

Dec 14, 2010 | Texas Instruments TI-83 Plus Calculator

Nothing's wrong with your calculator. The cosine of 180 radians is -.598...

If you want the cosine of 180 degrees, set the calculator's angle mode to degrees by pressing the MODE button, moving down to the third line, and selecting "Degree".

If you want the cosine of 180 degrees, set the calculator's angle mode to degrees by pressing the MODE button, moving down to the third line, and selecting "Degree".

Oct 29, 2010 | Texas Instruments TI-83 Plus Calculator

To put it in Scientific mode, press MODE then use your right arrow to move your cursor one spot to SCI. Press ENTER then press CLEAR.

May 31, 2009 | Texas Instruments TI-83 Plus Calculator

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

Check the links below:

*TI*-*83*-*Plus* Calculator Basics Tips and Techniques

*TI*-*83* GUIDEBOOK

Part II:*Texas Instruments TI*-*83*, *TI*-*83 Plus* Graphics Calculator **...**

Getting Started with the*TI*-*83* and *TI*-*83 Plus* Graphing Calculators

INTRODUCTION TO THE*TI*-*83* AND *TI*-*83 PLUS* Basics

Getting started*Texas Instruments TI*-*83* and *TI*-*83 plus* calculators

Calculator Notes for the*TI*-*83* and *TI*-*83 Plus*

*Texas Instruments*. *TI*-*83 Plus* graphing calculator - Guidebook **...**

Part II:

Getting Started with the

INTRODUCTION TO THE

Getting started

Calculator Notes for the

Apr 19, 2009 | Texas Instruments TI-83 Plus for Biology...

cos(number)^2

(or use the square button)

(or use the square button)

Feb 09, 2009 | Texas Instruments TI-83 Plus Calculator

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