10. CBQ - Operations on real numbers

Manoj used the laws of exponents to solve problems. When his friend asked him what to do if an power is negative, he clarified his doubt. As a result, Manoj and his friend gained a better understanding of the applications of exponents.

 

1. The value of ​${\left(2^3\right)}^4$​ is

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2. The value of ​$\left(5^4\times 5^8\right)$​ is 

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• ${32}^5$
• $5^{32}$
• $5^{12}$
• ${10}^5$

 

 

3. Which of the following is equal to ​$a^{-n}$​?

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• $\frac{1}{a^n}$
• $a^n$
• ${-a}^n$
• $\frac{a}{n}$

 

4. ​$2^{14}÷2^4$ \(=\) 

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• $2^{56}$
• $2^0$
• $2^{10}$
• $2^{18}$

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