Question about Texas Instruments TI-30 XIIS Calculator
Posted by Anonymous on
Press the cubic root key 3Root and enter the fraction enclosed in parentheses. 3Root((a/b))
Posted on Sep 02, 2014
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Posted on Jan 02, 2017
SOURCE: HOW TO FIND CUBE ROOT
There is a way to do it. I believe you go into "complex" or "math" buttons. These buttons are yellow on the calculator. Therefore, to access them you must hit "2nd" then the button.
Better yet, you can also get around this dilemma another way. You can enter "the cubed root of x" by raising x to 1/3.
For example the cubed root of x = x^(1/3). It is best to place parentheses around 1/3 so the calculator knows exactly what you mean.
Another example, the "cubed root of (x + 1)" can be entered by:
(x+1)^(1/3) Note the parenteses around both (x+1) and (1/3). This applies if the radical cover both "x" and "1".
Hope this helps.
Posted on Nov 09, 2007
SOURCE: Cube roots
You use the y^x (y to the x) key along with the 2nd function key. That does the opposite operation.
So, let's pick something we know the answer to as an example. How about the cube root of 8? We know 8 = 2 X 2 X 2, so the cube root of 8 will be 2.
8 2nd y^x 3 =
The display will show 2.
The three is the root you want. You can put in any number, with 2 being the square root, 3 the cube root, etc.
Posted on May 17, 2008
To find the cubed root (or any root) of a number, use the root() function.
If you want the cubed root of 125, you would type:
Posted on Nov 14, 2009
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