Evaluate: ${\left(2^{-1}\times 3^{-1}\right)}^{-1}÷2$

Important Questions on Exponents

MEDIUM

8th CBSE

IMPORTANT

Step by Step>Chapter 2 - Exponents>EXERCISE 2.2>Q 2

Evaluate: ${\left(-\frac{1}{3}\right)}^{-4}÷{\left(\frac{-1}{3}\right)}^{-2}$

MEDIUM

8th CBSE

IMPORTANT

Step by Step>Chapter 2 - Exponents>EXERCISE 2.2>Q 3

Find the value of $\text{'}m\text{'}$, if ${\left(\frac{3}{7}\right)}^{-6}\times {\left(\frac{3}{7}\right)}^{10}={\left(\frac{3}{7}\right)}^{2m}$

MEDIUM

8th CBSE

IMPORTANT

Step by Step>Chapter 2 - Exponents>EXERCISE 2.2>Q 3

Find the value of $\text{'}m\text{'}$, if ${\left(\frac{2}{9}\right)}^4\times {\left(\frac{2}{9}\right)}^{-7}={\left(\frac{2}{9}\right)}^{2m+1}$

MEDIUM

8th CBSE

IMPORTANT

Step by Step>Chapter 2 - Exponents>EXERCISE 2.2>Q 3

Find the value of $\text{'}m\text{'}$, if ${\left(\frac{3}{8}\right)}^{2m}\times {\left(\frac{3}{8}\right)}^6\times \frac{3}{8}={\left(\frac{3}{9}\right)}^{13}$

MEDIUM

8th CBSE

IMPORTANT

Step by Step>Chapter 2 - Exponents>EXERCISE 2.2>Q 4

Evaluate: $\left(5^{-10}÷5^{-7}\right)÷5^{-4}$

MEDIUM

8th CBSE

IMPORTANT

Step by Step>Chapter 2 - Exponents>EXERCISE 2.2>Q 4

Evaluate: $\left(3^8÷3^5\right)\times 3^{-3}$

MEDIUM

8th CBSE

IMPORTANT

Step by Step>Chapter 2 - Exponents>EXERCISE 2.2>Q 4

Evaluate: ${\left(-7\right)}^4\times {\left(\frac{3}{7}\right)}^4÷\frac{1}{3^{-5}}$

MEDIUM

8th CBSE

IMPORTANT

Step by Step>Chapter 2 - Exponents>EXERCISE 2.2>Q 5

Evaluate: $\left[{\left(\frac{1}{2}\right)}^{-3}-{\left(\frac{1}{3}\right)}^{-3}\right]÷{\left(\frac{1}{4}\right)}^{-3}$