Question about Texas Instruments TI-83 Plus Calculator

# How do you calculate cos squared? - Texas Instruments TI-83 Plus Calculator

Posted by on

• Anonymous Apr 23, 2009

How do you calculate cos squared?

×

• Level 1:

An expert who has achieved level 1.

Corporal:

An expert that hasĀ over 10 points.

Mayor:

An expert whose answer gotĀ voted for 2 times.

• Contributor

(cos(x))^2

Posted on Feb 18, 2009

## 1 Suggested Answer

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

×

my-video-file.mp4

Complete. Click "Add" to insert your video.

×

## Related Questions:

### How do i graph a circle in parametric mode?

The simplest way is
X1=cos(T)
Y1=sin(T)
Set angle unit to radians,
Set the Zoom window to SQR (square), otherwise your circle will look like an ellipse.

Sep 04, 2014 | Casio FX9750GII Graphic Calculator

### Cos theta 50

To calculate the Cosine of an angle, you first make sure that the angle unit on your calculator is set to the correct one (degree, or radian). After that it is all simple. Enter the angle value (50 degrees) then press the [COS] key. If you get an error then press the COS key followed by the angle value then press =.
Note if your calculator display Cos ( , with a left parenthesis, then you have to press COS first followed by the angle value and possibly the right parenthesis.
Note. The theta here is of no relevance.

May 27, 2013 | Casio FX350MS Scientific Calculator

### How do I cos square something im not getting the correct answer doing this.

Take the cosine of the number (cos key), square the result (x2 key). Make sure the calculator is in DEG and not RAD mode. Most elementary trig is conducted in degrees, not radians.

Apr 25, 2011 | Texas Instruments TI-83 Plus Calculator

### How do i convert the answer of cos(30) which comes out to 0.8660254038 to a fraction?

I am sorry, my friend, but you are asking the impossible. The reason is that the exact value of cos(30 deg) is equal to square root (3) /2 which cannot be fraction (the square root of 3 is an irrational number).
However, it may be possible for your calculator to give you a result with a radical (3)/ 2 but that is no fraction. (A fraction must have both numerator and denominator as integers).

To get a radical result set the IO mode to MathIO.
Press [SHIFT] [MODE] to open (SETUP) and select [1:MathIO]

Feb 18, 2011 | Casio fx-300ES Calculator

### How to solve for the trigonometric functions in the casio scientific calculator?

Press the relevant function key [SIN],[COS],[TAN] followed by the angle value.
For inverse trigonometric functions [SIN^-1], COS^-1], or [TAN^-1], Press [SHIFT][SIN], [SHIFT][COS], or [SHIFT][TAN].
For other functions
sec(x)=1/cos(x)
csc(x)=1/sin(x)
cot(x)=1/tan(x)

When calculating trigonometric functions one must make sure that the angle unit the calculator is using is the correct one.

Aug 26, 2010 | Casio FX-115ES Scientific Calculator

### Find cos 32° 45'

Hello,
Look at the column of keys under the ALPHA key. You have the integral, the square root, and then the key that has a degree sign, an apostrophe and a double closing quotation mark. That is the one you use to enter the angle in sexagesimal notation. To simplify my task I will symbolize the key with [DMS], degree, minute , second.
To calculate cos (32° 45')
you press
[COS] 32[DMS]45 [DMS] ) and press [=] The result si 0.841039013
Hope it helps.

Nov 08, 2009 | Casio FX-115ES Scientific Calculator

### Cos^2

cos(number)^2

(or use the square button)

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

### Cosh Squared or Cubed

if you want to square sin(3), press:

(
sin
3
)
)
^
2

Sep 24, 2007 | Texas Instruments TI-89 Calculator

### TI-89 Problems

There isn't anything "wrong" with it.

Go to mode, and set the results of your inquiries from Exact to approx.

If you put in cos(e^2), it will print out cos(e^2) because it's the most exact it can be without going into a decimal. (cos(e^2) will be a transcendental number like Pi).

Sep 09, 2007 | Texas Instruments TI-89 Calculator

## Open Questions:

#### Related Topics:

7,761 people viewed this question

## Ask a Question

Usually answered in minutes!

Level 3 Expert

Level 3 Expert