Example 4 - Chapter 11 Class 7 Exponents and Powers
Last updated at April 16, 2024 by Teachoo
Examples
Example 1
Example 2 Important
Example 3
Example 4 Important You are here
Example 5 (i)
Example 5 (ii) Important
Example 5 (iii)
Example 5 (iv) Important
Example 6
Example 7 Important
Example 8 (i) Important
Example 8 (ii)
Example 8 (iii) Important
Example 9 (i)
Example 9 (ii) Important
Example 10 Important
Example 11 (i)
Example 11 (ii)
Example 11 (iii)
Example 11 (iv) Important
Example 11 (v) Important
Example 12 (i)
Example 12 (ii) Important
Example 12 (iii) Important
Example 13 (i)
Example 13 (ii) Important
Example 13 (iii)
Example 13 (iv) Important
Transcript
Example 4 Expand a3 b2, a2 b3, b2 a3, b3 a2. Are they all same? a3 b2 = a3 × b2 = a × a × a × b × b a2 b3 = a2 × b3 = a × a × b × b b2 a3 = b2 × a3 = b × b × a × a × a = a × a × a × b × b b3 a2 = b3 × a2 = b × b × b × a × a = a × a × b × b × b Now, a3 b2 & b2 a3 (= a3 b2) are the same As they have same power of a & b Similarly, a2 b3 & b3 a2 (= a2 b3) are the same As they have same powers of a and b But all of them are not equal
