Suppose \({a}\) is a nonzero real number,
$$\large{{{\color{red}a}^0}} = 1$$
Description: When a nonzero real number \(\large{a}\) is raised to the zero power, the value is equal to \(1\).
Some examples:
$${2^0} = 1$$
$${\left( { - 37} \right)^0} = 1$$
The key here is that \(a\) can't equal zero. If it is zero, we have an undefined case. In calculus, it is called an indeterminate form.