How would I enter √8x^5 to output 2x^2√2x or another problem is (index 3)√81x^10 to output 3x^3 (index 3)√3x ? Thanks for the help.
Printable View
How would I enter √8x^5 to output 2x^2√2x or another problem is (index 3)√81x^10 to output 3x^3 (index 3)√3x ? Thanks for the help.
Quote:
Originally Posted by riker
its under F2
Thank you for your response. Well, it’ll only accept it as expand(√(8x^5)) and the output is then 2^3/2√x^5 instead of the answer in my lecture notes. Also, I still don’t know how to enter an index number on the calculator for a radical.
Hello,
What do you mean by "index number" ?
use your algebra rules to rewriteQuote:
Originally Posted by riker
which is easily imputtable into our calculator
Isn't index (n) the small number inside what looks to be a check √ in a square root?
My input = expand((81x^10)^(1/3))Quote:
Originally Posted by Mathstud28use your algebra rules to rewrite
which is easily imputtable into our calculator
Output = 3^(4/3)*x^(10/3)
What's going on?
Yep (I didn't understand at first time), but(Nod)
Yes...it is...But Moo is from france and she might not have heard that expression I am sure she knows what it means but in a different form..look at my above post for your asnwerQuote:
Originally Posted by riker
I edited my post. If you would, could to take a look at where I went wrong?
Well this is the right thing...
Though I'm not sure your calculator will give you exactly what you want :
Calculator has to be a tool, not a solver :pQuote:
3x^3 (index 3)√3x
The calculator is clearly solving but it is displaying one of two possible outputs for radicals. You said so yourself that you're not sure whether both can be displayed using certain methods or not. Now, the question becomes is there a way to get √8x^5 to output as 2x^2√2x on a Ti-89 calculator?Quote:
Originally Posted by Moo