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Question
Simplify and express the following in exponential form:
(515 ÷ 510) × 55
Sum
Solution
We have, (515 ÷ 510) × 55 = `(5^15/5^10) xx 5^5` = 515–10 × 55 ......`[∵ a^m/a^n = a^(m - n)]`
= 55 × 55 = 55+5 ......[∵ am × an = am+n]
= 510
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