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Question
Represent the following numbers in scientific notation:
(300000)2 × (20000)4
Solution
(300000)2 × (20000)4 = (3 × 105)2 × (2 × 104)4
= 32 × (105)2 × 24 × (104)4
= 9 × 1010 × 16 × 1016
= 9 × 16 × 1010−16
= 144 × 1026
= 1.44 × 1028
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