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How to find cube root.

With out log table.pl.help me

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Hello,
What we call roots: square, cube ,fourth roots, etc. can be shown in algebra to be equiavlent to powers with fractionary exponents where numerator is 1 and denomonator an integer.
square root of a = a to the power 1/2
cube root of a = a to the power 1/3
n-th root of a = a raised to the power 1/n, n integer different from 0.

How to use calculator to calculate cube root?
If you do not have a specific (shortcut) key for it you use the key to raise to an arbitrary power [^ ], sometimes shown as [x^y]. The exponent will be 1/3. Do not replace 1/3 by its decimal approximate.

Cube root of 27 is entered as 27 [^ ] (1/3)

Hope it helps.

Posted on Sep 14, 2009

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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

2 Answers

How do you calculate the cubed root of a number or 5th root of a number?


For cube roots, use the cube-root function in the MATH menu. For example, to calculate the cube root of 8, press MATH 4 8 =

For other roots (including cube root), use the xth-root function in the MATH menu. For example, to calculate the fifth root of 32, press 5 MATH 4 3 2 =

Mar 02, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

How to find nth root using Casio FX-83ES


You use the power root function key accessible with the key sequence [SHIFT][X ^]. I am inserting a screen capture from the manual to show you the sequence.

On the third line of the capture (power root) is the key you must press. In the small rectangle to the left of the radical sign you enter the order of the root: 2 for square root, 3 for cube root, 4 for 4th root and son on.

To calculate the decimal log you use the [LOG] key as shown on capture. For natural log (ln), use the [LN] key. The argument (2/3) in your example should be enclosed inside the parentheses.
752d920.jpg

Jun 04, 2010 | Casio fx-300ES Calculator

1 Answer

Finding a cube root on calculator


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).

May 27, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

How do i do a number 'to the power of 1/2 or 2/3? cheers Brad


Power 1/2 is the same as square root: You can use the square root key to the left of the square key.
Similarly power 1/3 is the cube root. You use the [SHIFT][Square root] key sequence.
Power 2/3 is the square of the cube root, or the cube root of the square.

More generally, you can use the universal power key, marked with X with a raised white rectangle. It is between X square and log.

Ex: Calculate 15^(2/3)
15 [X with raised rectangle] 2 [/] 3 [)] [=]; the result is 6.082
The last parenthesis closes the left parenthesis introduced by the calculator.
Alternatively you can use the cube root and the x-root selections available under the MATH menu.(selections 4 and 5)
6629153.jpg

Mar 14, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

I need to find the cubed root of a number and my calculater doesn't have the symbol , for instance I need the cubed root of 49.7


The cube root of 49.7 is equal to 49.7 raised to the 1/3 power. You can take the log of 49.7, divide it by 3 and then find the antilog of this result. Or as below:

Cube root 49.7 = Antilog ( log(49.7) / 3) )

Good luck!

Mar 06, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

How to type suffixes and squares, cubes, k bar?


Hi, there may be other "Questions" along the way that may need answering, one of the best information centers, is the (?HELP!), it is located on the Microsoft (WORD) Menu Bar; just look for the ("circled?"). ou can enter a question in the search (box), or go to: the "Table of contents" for a listing of most ask question etc. "I hope this helps' Ya"s

Jan 26, 2010 | Microsoft Office Word 2007 Upgrade Version...

3 Answers

How to find cubed root on a TI-89 calculator


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:

root(125,3)

Mar 06, 2009 | Texas Instruments TI-86 Calculator

2 Answers

Taking cubed roots


Well, heck, I can't answer that one but perhaps you can get a better response here:

http://ti-89.org/faq.html

(I'm glad I don't have to deal with this kind of stuff any more!)

Aug 27, 2008 | Texas Instruments TI-89 Calculator

3 Answers

Entering a cubed root into a ti-83 plus


You can enter any root by typing the number, then hitting MATH and 5, which brings up the root symbol with the x in front of it: x√. So the fifth-root would be 5 -> MATH -> 5 and then whatever number you want to get the fifth-root for: 5x√10 for example. As someone else had mentioned, you can also raise it to a rational power: 3^(1/3) which would be the same as the cubed root of 3, but you could also type: 3 -> MATH -> 5 -> 3 and get the same answer, but looking like this in your calculator: 3x√3. The option for 4 actually is a predefined cubed-root, and the one for option 5 there is the root symbol that can be used with any number before it to get any root you want. There are no parenthesis as you get when using the predefined square-root and cubed-root functions, though, so you may want to type them in yourself if entering a long string of operations in the calculator at one time to make sure the calculator doesn't include numbers under the root that you don't want it to. But I guess it depends on preference in terms of what method you choose between the rational exponents or the root symbol (and most would go with whichever seems easiest and quickest to enter), but you asked specifically how to get the cubed-root on the TI-83 Plus, so there's my best attempt at answering your question.

Aug 22, 2008 | Texas Instruments TI-83 Plus Calculator

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