Education Technology

Solution 10574: Calculating Nth Roots Using the TI-85 and TI-86.

How do I perform nth root computations using the TI-85 and TI-86?

The instructions below will demonstrate how to perform the nth root computations on the TI-85 and TI-86 graphing calculators.

Example: Compute the cube root of 27.

1) Press [ON]
2) Press [2nd]
3) Press [x] (the multiplication key) *notice above the multiplication key the word MATH in yellow
4) Press [F5] *menu title MISC
5) Press [MORE]
6) Press the number [3]
7) Press [F4]
8) Press [2][7]
9) Press [ENTER]

An answer of 3 is given on the right side of the display.

Please see the TI-85 and TI-86 guidebooks for additional information.