Have to be able to convert back a forth to solve algebra two problems
Learn the equivalence.
180 deg=pi RADIANS.
1 DEG= (Pi/180) rad.
1 rad= (180/Pi) degrees.
SOURCE: don't know how to change it from degrees to radian mode
if you press the |mode| button (at the top right of the calculator) until you see Deg Rad Gra on the screen (I believe 3 presses of the mode button) and just hit the number below the rad option on the display. This will permanently change it to radian mode until you repeat this step, or clear the memory.
There is also a way to change to radian mode for just one operation if you will be mostly using degrees for example
at the bottom there is a DRG> as a shifted function. I would just recommend changing it in the way I initially outlined as there is less room for error when making calculations.
SOURCE: i need to change to mode to degress
Under the screen you can see atable of values at the right of which is written MODE followed by a small arrow.
If you want to set the degree as angle unit, you press the MODE key followed by 4 (as seen in the table I was referring to).
Similarly, if you want to set RAD as the angle unit you press MODE then 5; and MODE then 6 for GRAD.
However if you just want to convert a number displayed on the screen in RADs or GRADs into DEGs , you press SHIFT then MODE then 4. your number should be converted from the unit it was expressed in into degrees.
Same thing if you want to convert into RADs: SHIFT then MODE then 5.
Hope it helps.
SOURCE: how do I change this calculator from radians to
Hello,
Here is a clipping from the manual for the FX300MS, that will certainly help you to change the angle unit.
SOURCE: HOW DO I CHANGE THE RADIANS MODE TO DEGREE MODE
Hi,
Turn calculator ON.
If you do not see icons, press MENU.
Use arrows to highlight the RUN icon and press EXE
In RUN application press SHIFT and SETUP
Use Down Arrow to highlight the line Angle
Press F1 to select Deg and press EXE.
This action will return you to the RUN application (main calculator screen).
Hope it helps.
SOURCE: Degree and radian function Casio fx-9750GA Plus
Press MENU, then select RUN and press EXE.
Press SHIFT MENU to access the SetUp.
Move cursor to highlight Angle.
In the botton of screen you see the Deg TAB. Activate it by pressing F1.
Here is a screen capture.
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Let's start with a little background.
The cot(x) is also known as the cotangent(x) and it equals 1/tan(x) which equals cos(x)/sin(x). I'm showing these formulas because your calculator may not have a cot button but it will probably have buttons for tan, cos, and sin.
Your calculator may also have buttons for tan-1, cos-1 and sin-1. These are the inverse functions for tan, cos, and sin. If you enter a number and then push the tan-1 button, the result is the angle whose tangent is the entered number. For example, it you enter 1 and push the tan-1 button the answer will be 45 deg because tan (45 deg) = 1.
Now let's look at the problem, cot(x) = -0.6.
The first thing we need to know is do you want the answer in degrees or radians? Your calculator will have both modes. The default mode when you first turn it on is probably degrees. If this problem is in radians you will need to change the mode of your calculator over to radians before we start.
If cot(x) = -0.6, then tan(x) = 1/-0.6 from the formula I showed in the background section.
This means tan(x) = -1.6666666...
Now we just enter -1.66666667 and hit the tan-1 button to get the answer.
If we're operating in radians the answer is -1.0307 radians.
If we're operating in degrees the answer is -59.036 deg.
I hope this helps you out.
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