Question about Texas Instruments TI-86 Calculator
Find the 3rd root of 1 / 2.5 x 10^6
Posted by Anonymous on
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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
enter the number, press 2nd and then press the button that has the squareroot and the x in the middle (beside the AC/ON button) for example, i have to find the square root of 25, i press 2nd and the button and i get 5, hoped this would help :-)
Posted on Sep 20, 2009
If you want the answer in rectangular form, set MODE a+bi and tap ENTER and QUIT. Tap square root sign, tap (-)4 and close the parenthesis and tap ENTER. The answer is shown as 2i.
If you want the answer in polar form, set MODE to re^xi and and DEGREE. Tap ENTER and QUIT. Tap the square root sign, tap (-)4, close the parenthesis, and tap ENTER. The answer shown is 2e^90i. (2 at ninety degrees). If you selected RADIAN mode, the answer would be 2e^1.57i (2 at 1.57 radians; or 2 at pi/2 radians)
Posted on Dec 20, 2009
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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