Question

Why is a number raised to the power zero always given to be equal to one?

Answer 1

Explain why a number raised to the power zero is always given to be equal to one.

Any number '$a$' raised to the power zero is always equal to one because its numerical value is $1$.

That is $a^0=a^{(1-1)}=\frac{a}{a}=1$

Hence, any number '$a$' raised to the power zero is always equal to one because its numerical value is $1$.