- #1
nietzsche
- 186
- 0
I am very confused. Here I was thinking I know the basics of algebra, and then I get two questions in my homework today with exponents like this.
[tex](-1)^{\frac{2}{3}} = undefined[/tex]
when I type it into my calculator.
But with manipulation,
[tex](-1)^{2/3} = [(-1)^{2}]^{\frac{1}{3}} = 1[/tex]
Am I missing something here? My textbook solutions manual says that you can graph such a function for negative values, but when I plug it into, for example, my Mac's graphing software, it only graphs it for positive values of x.
Which one is correct?
Thanks!
[tex](-1)^{\frac{2}{3}} = undefined[/tex]
when I type it into my calculator.
But with manipulation,
[tex](-1)^{2/3} = [(-1)^{2}]^{\frac{1}{3}} = 1[/tex]
Am I missing something here? My textbook solutions manual says that you can graph such a function for negative values, but when I plug it into, for example, my Mac's graphing software, it only graphs it for positive values of x.
Which one is correct?
Thanks!