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How do you find the nth root button on the TI-86?

9 square root of 812

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9 square root(812) = 256.460523

Posted on Jun 22, 2009

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Compute the nth root


The nth-root function is the right-shifted function of the square-root key, second column from the left, fifth row from the top.

In RPL mode, to calculate the third root of eight, press 8 ENTER 3 right-shift [nth-root] and get 2.

In algebraic mode, press right-shift [nth-root] 3 right-shift [,] 8 ENTER and get 2. (The comma is the right-shifted function of the SPC key on the bottom row.)

Oct 01, 2012 | HP 50g Graphic Calculator

1 Answer

How do i use the radical symbol on my ti-30xs


The radical symbol is used to calculate square roots. It a radical has a small 3 to the top left of it, it means cubic root. It it has a a small n or a small x to the top left of it, it means nth root.

The way any of these roots works is one of the following:
Enter a number (positive for a square root or an nth root with n even) then press the square root button. The result is then displayed.

The other way is to press the root key then enter the number whose root you wan t calculate. The result is then displayed.

If you press the square root key and a radical is displayed withy a left parenthesis, you can be sure it is the second way.

Jan 26, 2012 | Texas Instruments Office Equipment &...

1 Answer

How can I find the square root of 39 on my ti-30xa? Also I would like to know how to find the cube of 9482... Help


Square root of 39: Press 3 9 [square-root] =
[square-root] is the key just to the left of the divide key.

Cube root of 9482: Press 9 4 8 2 2nd [cube-root] =
[cube-root] is the shifted function of the 0 key.

For other roots, you can use the [nth-root] function, the shifted function of the key above the divide key. For example, to calculate the fourth root of 16, press 1 6 2nd [nth-root] 4 =

Aug 11, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

Does my ti-86 solve sq. root problems


Yes, your Ti 86 should solve square root problems. At the HOME screen press [CLEAR] [2nd] [x^2] which gives the (Square Root Symbol) to display at the Home screen. Then enter the number you want the square root of and close the bracket [ ) ] and, press the [ENTER] key.

You can even get the square root of complex numbers too. Select the correct complex format in the mode settings. For example: I'll do one in the rectangular form by enter a number as (a, b). I then will go to [2nd] [MODE] then [Arrow down] 3 times and make sure the RectC is highlighted and selected. Then quit out of the mode settings screen and enter [CLEAR] [2nd] [x^2] [ ( ] [9] [ , ] [ - ] [4] [ ) ] [ ) ] [ENTER], this displays the SQRT((9,-4)) equals (3, 2); The real part is 3 and the imaginary part 2.

Jan 09, 2011 | Texas Instruments TI-86 Calculator

1 Answer

Nth roots


Use the nth-root function, which is the shifted function of the y^x key just above the divide key. For example, to calculate the 5th root of 32, press 32 2nd [xth-root] 5 =

Dec 07, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

The TI-84 Plus Silver Edition - when dealing with roots and powers - how do you punch in the third root of or the fourth root of... also, how do you punch in ...the 3rd root of 8 cubed? or the 2nd root of...


Press the MATH key to bring up the Math menu. Option 3 gives you cubed, option 4 gives you cube root, option 5 gives you nth root.

For example, 3rd root of 8: MATH 4 8 ENTER gives 2.

4th root of 16: 4 MATH 5 16 ENTER gives 2.

Apr 01, 2010 | Texas Instruments Office Equipment &...

1 Answer

How do I find the cube root button on my TI- 86


Hello,
There is a relation between roots and fractionary powers.

2nd root (square root) of X = X^(1/2) power 1/2
3rd root (cubic root) of X = X^(1/3) power 1/3
4th root of X = X^(1/4)
...
n-th root of X = X^(1/n)

Use the raise to arbitrary power key labeled as a caret [^] or [X to the y] or [Y to the x]
Hope it helps.


Oct 12, 2009 | Texas Instruments TI-86 Calculator

1 Answer

I'm trying to learn how to get a cubed root on my calculator. I've looked up a lot of different ways of doing it.. but what does ^ mean?!


Hello,
If there is no special key reserved for that operation, you can use the raise to an arbitrary power key. This key is represented as [^] ( a caret or accent circonflexe) or [X to the y] or [Y to the x ]. I have just verified : it is primary key accessible directly.
If you want the cube of a number; 2 [^]3 =2x2x2=8.
In your algebra course they must have taught you that the roots of a number (square, cube, fourth, fifth, nth) are equivalents to raising that number to a fractionary power (a power whose exponent is a fraction of the form 1/2 ,1/3, 1/4, 1/5, 1/n etc.)

27[^] (1/3) = cube root of 23 = 3
Hope it helps.

Sep 23, 2009 | Texas Instruments TI-86 Calculator

1 Answer

Nth root button on it89


Hello,
There is no nth root button per se. But to take the nth root of a number is equivalent to raising the number to the power 1/n

Nth root of X= X^ (1/n)
Hope it helps.

Mar 13, 2009 | Texas Instruments TI-86 Calculator

1 Answer

I need help with square root functions


Hello,
The square root has a dedicated key sequence [2nd][V square root symbol]
Square root of 21.2846 is entered [2nd][V square root] 21.2846 [ENTER] .
The result is`4.614.
I suspect you want to calculate the 4th root of 21.2846. If it is the case you enter that as
21.2846 [^](1/4) =2.148
Square root can be also entered as [^](1/2)
Cube root is entered as [^] (1/3)

..
nth root is entered as [^](1/n)
Hope it helps.

Nov 19, 2008 | Texas Instruments TI-86 Calculator

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