Question

Question 37

In the following question, fill in the blanks to make the statements true.

$5^5\times 5^{-5}$ =

Answer 1

Using law of exponents,
$a^m\times a^n=(a{)}^{m+n}\therefore 5^5\times 5^{-5}=(5{)}^{5+(-5)}=(5{)}^0=1$
Hence, $5^5\times 5^{-5}=1$