Question about Texas Instruments TI-83 Plus Calculator

# What is the fourth root of 83? - Texas Instruments TI-83 Plus Calculator

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Press 2ND [square-root] 2ND [square-root] 8 3 ENTER on your TI-83Plus and see the result. Alternatively, you can press 4 MATH 5 8 3 ENTER and save a keystroke.

Posted on Mar 03, 2011

• Math Cheetah Mar 13, 2011

Que Pasa,

what Akima said is true...but let me chime in with my favorite way to find the fourth root of a number.

Disclaimer: This method requires knowledge of the exponent rules.

83^.25

1. Type 83
2. Hit ^
3. Type .25
4. Hit Enter

That is ultra fast, and I love ultra fast.

Raising something to the one-fourth power is the exact same thing as finding the fourth root of that number. Example: the square root of 'x' is 'x' to the one-half power; the eighty-ninth root of 'x' is 'x' to the one-eighty-ninth power; etc. You can use fractional exponents in place of radicals at every juncture. And the more you dive into advanced mathematics the more you will want to think of roots in terms of powers.

Okedoke.

The Math Cheetah

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## Related Questions:

### 4 squre root 81

Take the fourth root. The square root, denoted by a 2 on top of the "root thing" or more commonly without a number at all, is the second root.

Usually the easiest way to calculate the fourth root is to calculate the square root of the square root. So in this case the fourth root of 81 is the square root of the square root of 81. The square root of 81 is 9, the square root of 9 is 3.

Apr 18, 2013 | Office Equipment & Supplies

This calculator can show the results in radical form if it involves square roots. The 4th root of 243 is 3 times the fourth root of 3, which unfortunately is beyond the calculator's capabilities to display in radical form. Try taking the fourth root of 3 (or equivalently, the square root of the square root of 3) and you'll see the calculator display the result in decimal.

Feb 06, 2013 | Casio Office Equipment & Supplies

The calculator can show the results in radical form if it involves square roots. The 4th root of 243 is 3 times the fourth root of 3, which unfortunately is beyond the calculator's capabilities to display in radical form. Try taking the fourth root of 3 (or equivalently, the square root of the square root of 3) and you'll see the calculator display the result in decimal.

Feb 06, 2013 | Office Equipment & Supplies

### How to find the polynomial roots in TI-83 Plus

One way is to use the Polynomial Root Finder and Simultaneous Equation Solver app.

Press the APPS key, then select PlySmlt2 and press ENTER. Press ENTER to get past the opening screen, then select "POLY ROOT FINDER" and press ENTER. Select the order of the polynomial and other settings as desired. Press F5 (the GRAPH key) to go to the next screen. Enter the polynomial coefficients, then press F5 to solve. The next screen will show you the roots (unless you selected real roots and the polynomial doesn't have any real roots).

If you don't have the app installed, you can download it from
http://education.ti.com/educationportal/sites/US/productDetail/us_poly_83_84.html

Jan 20, 2011 | Texas Instruments TI-83 Plus Calculator

### I'm doing radicals I need to type an exponent into my calculator that goes before the square root not after. how do i do that (5) as an exponent square root of 32.....the answer is 2 but how do i type it...

Use the xth-root function to compute any root. It's the fifth entry on the MATH menu, which you can get by pressing the MATH key. The fourth entry on the same menu gives you the third root without needing the 3 to be specified.

For example, to compute the 5th root of 32, press 5 MATH 5 3 2 ENTER.

Oct 21, 2010 | Texas Instruments TI-83 Plus Calculator

### How do you use the TI -83 calculator to find the square root

Example to find the square root of 256 press 2nd then square root button then 256)

Sep 24, 2010 | Texas Instruments TI-83 Plus Calculator

### I need to know how to enter anything above cube root into my TI-83.

1. Use the universal power key marked with [^].
2. To avoid problems if the exponent is an expression, enclose it in parentheses.
3. To enter any power type number^(exponent)
4. If exponent is negative use the (-) change sign key next to the dot, below the 3 key.
5. To calculate the roots (cubic, fourth, fifth, etc.) roots use the fact that a root of n-th order can be represented as ^(1/n)
6. Ex: cube root of 27: 27^(1/3); square root of 64 : 64^(1/2) or 64^(0.5)

Feb 26, 2010 | Texas Instruments TI-83 Plus Calculator

### How do you take the 3( square root) of 64 or the 4 root of any other number? im trying to take the 2nd button but still having trouble ? can u please help?

Hi shiny_diamon
Here is a picture of the powers and root functions of your calculator.
1.To calculate the cubic root of a number you use the key combination shown on line 5
Ex: Cubic root of 27
27 [2nd] [3 root x] [EXE]; Should get 3
2. You can use the general root key on line 7 [2nd][x Root y]
Ex: Cubic root of 125
125 [2nd][ x Root y] 3 [EXE] Should get 5
(-125) [2nd][x Root y] 3 [EXE]; Should get -5

3. You can also yse the general power key on line 6: [Y to x], but the degree of the root is entered as a fraction 1/3
Ex: cubic root of -125.
(-125) [Y to x]( 1/3) [EXE]; You should get -5

4. The [Y to x[ key is the one you use to obtain all other roots fourth, fift, tenth, n-th.
Ex: Fourth root of 256
256 [Y to x] (1/4) [EXE]: You should get 4

Hope that helps.

Nov 08, 2009 | Texas Instruments TI-30XA Calculator

### Cube root

You can multiply a number by 1/3rd to get the cube root or

Under the MATH button, the fourth option down will give you cube root. Any n root beyond that will require the x^(1/n) method.

Feb 12, 2009 | Texas Instruments TI-83 Plus Calculator

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