why does the graph of x^(2/3) only exist on domain of (0,infinity)?
if i plugged in a negative value say, -1 (negative one)...... via 3*sqrt((-1)^2) "the 3rd root of negative one squared"....i would get an output of -1........on the otherhand if i plugged in -1^(2/3) or "negative one raised to...