Question about Texas Instruments TI-30XA Calculator
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
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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
Use the root function in the MATH MISC menu.
To find the 5th root of 32: enter 5 then the root function and then 32 and then ENTER to get 2.
Posted on Apr 06, 2010
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I am guessing, but, find the key that has a 3 to the left of the root symbol, looks like a check mark. Push it, then the number you want to take a cube root of, then enter.
Posted on Jan 26, 2009
You can calculate cube roots by using the cube root function (the 2nd-shift of the 0 key). You can calculate arbitrary roots by using the x-root function (the 2nd-shift of the y^x key, just above the divide key).
Posted on May 27, 2010
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