The Power of Anything
Here’s a fairly rational argument.
If we have any number x, to raise its current exponent (or power) by 1 we multiply by x.
xa+1 = x(xa)
For instance, you’ll agree that 33 = 32 x 3 ; 27 = 9 x 3. It follows that to lower the exponent of x by one we divide by x.
xa-1 = (xa) / x
e.g. 33 = 34/3 ; 27 = 81/3
This holds when the original exponent, a, is 1.
Lihat Tulisan terkait :
x0 = x1/x = 1
e.g. 30 = 31/3 = 1