The document RD Sharma Solutions - Chapter 2 - Powers (Ex-2.2) Part - 1, Class 8 Math Class 8 Notes | EduRev is a part of the Class 8 Course RD Sharma Solutions for Class 8 Mathematics.

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**Question 1:Write each of the following in exponential form:**

**Answer 1:**

{amÃ—an=am+n}

{amÃ—an=am+n} **Question 2:****Evaluate:**

(i) 5^{âˆ’2}

(ii) (âˆ’3)^{âˆ’2}

**Answer 2:**

**Question 3: Express each of the following as a rational number in the form ****p/q:**

(i) 6^{âˆ’1}

(ii) (âˆ’7)^{âˆ’1 }**Answer 3:**

**Question 4:Simplify:**

(i) {4

(ii) {5^{âˆ’1}Ã·6^{âˆ’1}}^{3}

(iii) (2^{âˆ’1}+3^{âˆ’1})^{âˆ’1}

(iv) {3^{âˆ’1}Ã—4^{âˆ’1}}^{âˆ’1}Ã—5^{âˆ’1}

(v) (4^{âˆ’1}âˆ’5^{âˆ’1})Ã·3^{âˆ’1}

**Answer 4:**

**Question 5: Express each of the following rational numbers with a negative exponent:**

**Answer 5:**

**Question 6: Express each of the following rational numbers with a positive exponent:**

**Answer 6:**

**Question 7: **

**Simplify:**

**Answer 7:**