9. CBQ - Operations on real numbers

Hena always participates in quiz competitions and wins prizes. In her last quiz, there was only a half mark difference between her and her opponent. The final question would decide the winner. It was from exponents. Hena quickly simplified the exponent question, answered correctly, and won the trophy.

 

1. What is the value of ${\left(8^4\right)}^5$?

 

2. What is the simplified form of  $5^{\frac{1}{2}}\times 5^{\frac{1}{2}}$?

 

3. What is the value of $8^0$?

 

4. What is the value of ${16}^{\frac{1}{4}}$?