# Seemingly Simple Algebra (Exponent Rules)

1. Jan 15, 2012

### janac

I understand that

a(b/c)

=

$\sqrt[c]{}(a^b)$

so this suggests that
(-1)(2/3)

$\sqrt[3]{}((-1)^2)$ = -1 right?

Wolfram alpha and my calculator disagree.

2. Jan 16, 2012

### micromass

3. Jan 16, 2012

### chiro

Hey januc and welcome to the forums

Convert things to the exponential form if you want to do stuff like this. Exponential form is e^(i x theta) = cos(theta) + i x sin(theta)