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Question
If a = 3 and b = 2, then find the value of the following.
aa – bb
Sum
Solution
aa – bb
Substituting a = 3 and b = 2
we get 33 – 22
= (3 × 3 × 3) – (2 × 2)
= 27 – 4
= 23
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Unit Digit of Numbers in Exponential Form
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Chapter 3: Algebra - Exercise 3.1 [Page 52]
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