# 20 Most Recent Casio FX9750GII Graphic Calculator Questions & Answers

1. Press [AC/ON].
2. Press [SHIFT] [MENU]
3. Press [v] [v] [v] [v] [F1]
4. Press [EXIT] [AC/ON]
Try out: [SIN] 45 [EXE], result should be 0.5.

Casio FX9750GII... | Answered on Jun 01, 2016

Once the matrix is created you can use the reciprocal key to get the inverse.
I hope you will not hold against me if I showed the whole porocess. (No reflexion on your or anybody's abilities to create a matrix. Just trying to be helpful to more people.)

Press Menu to display icons.

Press 1 or use Arrows to highlight Run/Mat.Press EXE

Press the F1 key to activate the Mat TAB.

While a matrix label is higlighted press F3:Dim to enter the dimensions.
Matrix must be square.

Fill her up!

Press EXE after entering the last element.
Then press EXIT to return to the Run/Mat Screen.
In Run/Mat screen press the OPTN key. Press F1 to enter the Mat identifier
followed by [ALPHA] A (if the matrix you created is stored in A)
At this point the screen displays Mat A.

Any of the continuations of the command shown below will yield the inverse matrix.
The minus sign you see in the 2nd and 3rd commands below is the change sign (-)

For the bogus 2X2 matrix I entered, the result is as follows.

Notice that even if inside the answer matrix the elements are displayed as decimals, the
values you will see at the bottom are exact fractions.

Casio FX9750GII... | Answered on Mar 10, 2016

The relational operators (=, >, <, and similar symbols) are available in two places.
If you are trying to draw an inequality graph
Press the Graph Menu,
Press F3:Type
Press F6:> to access other tabs. The 4 inequality symbols are availabe in the following screen.
Press F1:>, F2:< etc. to type in the inequality sign in your inequality.

If you want the relational operators for some other purpose, you can access then in the catalog of commands.
Press 1:Run>Mat to go to the main calculator screen
Press [SHIFT][4] (Catalog] to open the Catalog.
Scroll up or down until you reach the relational operator you want.
Select it and press EXE.

Casio FX9750GII... | Answered on Sep 25, 2015

The relational operators (=, >, <, and similar symbols) are available in two places.
If you are trying to draw an inequality graph
Press the Graph Menu,
Press F3:Type
Press F6:> to access other tabs. The 4 inequality symbols are availabe in the following screen.
Press F1:>, F2:< etc. to type in the inequality sign in your inequality.

If you want the relational operators for some other purpose, you can access then in the catalog of commands.
Press 1:Run>Mat to go to the main calculator screen
Press [SHIFT][4] (Catalog] to open the Catalog.
Scroll up or down until you reach the relational operator you want.
Select it and press EXE.

Casio FX9750GII... | Answered on Sep 25, 2015

All calculator use scientific notation if the result is too small or too large. Some, like the Casio FX9750G II, offer you two Normal displays, Norm1 and Norm2 that have different limits when numbers are converted to scientific notations.
Here is how to set one or the other.
In Run>Mat press SHIFT MODE (Setup). Scroll down or up to reach the display line. Press F3 to select Norm1 or Norm2.

Casio FX9750GII... | Answered on Feb 13, 2015

What is the question. Your calculator FX-9750 GII does not have a Computer Algebra System or CAS, so you cannot factor a polynomial.
If you want you can try to find the zeros of the polynomial function (the values of x when the function crosses the horizontal axis) either by solving P(x)=0 or by graphing y=P(x).
Once you have the approximate roots x_1, x_2, ...,x_n, you can factor out the coefficient of the leading term (the term with the highest power) and write P(x) =a_n *G(x). here a_n is the coefficient of the leading term.
G(x) can then be written as G(x)=(x-x_1)(x-x_2)*(x=x_3)...(x-x_n)
and the original polynomial will be
P(x)=a_n(x-x_1)(x-x_2)*...*(x-x_n)
Note: Here is an example of P(x) and the corresponding G(x)
P(x)=5x^3+7x^2-13x^+29
P(x)=5(x^3+ (7/3)*x^2-(13/5)x+29/5)
G(x)=x^3+ (7/3)*x^2-(13/5)x+29/5
You should keep in mind that the roots are in general complex. Not all polynomials are factorisable in the set of Real numbers.

Casio FX9750GII... | Answered on Oct 02, 2014

Either you have an idea where the extremum (minimum/ maximum) might be (its x-value and maybe its y-value) and you set the center of the graph accordingly, or you zoom out until you locate it.Them you change the center of the graph to be about the position of the extremum. There is no ready made recipe that will work for any function. Just Trial and error. It might help calculating a few values of the function for x=0, x=-10. If the extremum happens to be within the table that the calculator generated to draw the graph, then it will be found.

Casio FX9750GII... | Answered on Sep 25, 2014

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.

Casio FX9750GII... | Answered on Sep 04, 2014

What is the meaning of that question. Are you doing transformations? In that case you exchange the variables, not the axes.

Casio FX9750GII... | Answered on Aug 27, 2014

Press [SHIFT][Log_ab], below the ON button. Better use the MathIO input/Output mode.

Casio FX9750GII... | Answered on Aug 27, 2014

The tangent of 40 radians is a negative number.

Casio FX9750GII... | Answered on Jun 15, 2014

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