Question about Texas Instruments TI-82 Calculator

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There's a cube root function in the MATH menu. Press the MATH key and it should be item 4.

Posted on Mar 28, 2011

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Posted on Jan 02, 2017

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5/3 cannot be represented exactly. Break it up into two parts, (-8)^5 then take the cube root. Be aware that their are three roots.

Apr 06, 2017 | Texas Instruments TI-82 Calculator

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 =

[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

There's a cube root function as the fourth item in the MATH menu. The fifth item is a general root function.

For example, to calculate the cube root of 8, press MATH 4 8 ENTER

For example, to calculate the cube root of 8, press MATH 4 8 ENTER

Feb 21, 2011 | Texas Instruments TI-84 Plus Calculator

Enter the number 3 then hit 2nd button then the ^ button(cubed root), enter the number under the radical sign then enter.

Jul 12, 2010 | Texas Instruments TI-30 XIIS Calculator

To find the cubed root of say...8, then you would type this into the calculator:

root(8,3)

root(8,3)

Nov 02, 2009 | Texas Instruments TI-86 Calculator

x-th root of a number equals the number to the power of (1/x) where x is a natural number.

square root = to the power of (1/2)

cubic root = to the power of (1/3)

square root = to the power of (1/2)

cubic root = to the power of (1/3)

May 26, 2009 | Texas Instruments TI-84 Plus 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)

If you want the cubed root of 125, you would type:

root(125,3)

Mar 06, 2009 | Texas Instruments TI-86 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.

Here's how:

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.

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.

Here's how:

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.

Mar 23, 2008 | Texas Instruments TI-30XA Calculator

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.

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.

Oct 03, 2007 | Texas Instruments TI-86 Calculator

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