Number Problem 17

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Problem: Find the value of (999,999,999)3 without using tables.

Solution: (999,999,999)3 = (109 - 1)3

= (109)3 - (1)3 - 3 X 109(109 - 1)

= 1027 - 1- 3 X 1018 + 3 X 109

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