It isn't. You're thinking of anything to the power zero. x0 = x(n - n) which equals xn divided by xn which equals 1.
rearrange the following: A^(1/n)= the nth root of A. eg A to the power 1/2 equals the square root of A. A to the power 1/3 equals the cube root of A. etc.
3 x10 30 x10
3.1 when you round the answer up
The answer depends on which two of (n, x, y) represent the coordinate variables.
N = x4 x8 = x4+4 = (x4)2 = N2
This is definitely false; if x=2 and y=3, x to the y power is 8, but y to the x power is 9, which are not equal.
n=1 is the the lowest level there is.
n = 8
15 - n when n equals 9 = 6