Nth roots I have tried to solve roots higher than 2 on my TI-89 using the exponential way, but it doesn't work when the variables have exponents as well. I tried using the math menu, but I don't know what secondary menu to look at to get the symbols I am looking for. If someone could give me a detailed way to work through this, that would be deeply appreciated.

SOURCE: Need Help Solving Exponential Functions ASAP!!!!

You can calculate =4^1.2 in Excel and get 5.278031643
And also in Excel you can determine what the square root of 2 is (2.506628274631) and then in Excel = 5 ^ 2.506628274631 = 56.5012395907155.

I know this is late but maybe it will help later. Assuming I am doing it right. Thanks!

Sivaranjini

• 241 Answers
• Posted on Jun 22, 2009

SOURCE: how do you find the nth root button on the TI-86?

9 square root(812) = 256.460523

SOURCE: Ti-89 gives error of "Undefined Variable"

You have to reset
• Press [2nd] [6] (MEM) [F1] [ENTER(RAM)]
• Select 1:ALL RAM
• Press [ENTER]
• Press [ENTER]
NOTE- erased half of my programs(I think only the ones in the main directory)

onomou

• 24 Answers
• Posted on Oct 04, 2009

SOURCE: solving multiple non-linear equations

Type it like this: solve( equation1 and equation2 and moreEquations, {list of variables to solve for})

Put all of your equations right after the opening parenthesis separated by the word and, then a comma, then within curly braces each variable you want to solve for each separated by a comma.

SOURCE: 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)