Any non-zero real number raised to the power of 0 is equal to 1.
a^0=1
Proof
To prove this identity, it will be shown that the left-hand side is always equal to 1 for any real number a. To do so, the exponent 0 will be written as a difference, for instance b-b. Then, the expression will be rearranged using the Quotient of Powers Property.