Write the following in scientific notation: (200)3
4×104
8×106
6×106
8×108
A
4×104
B
6×106
C
8×106
D
8×108
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Solution
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The correct option is B (8×106)
Given (200)3=(2×100)3 Using the rule of (a×b)m=am×bm ⇒(200)3=(2)3×(100)3 =23×(102)3 [Since, 100=102] =23×102×3 [Since, (am)n=a(m×n)] =8×106 ∴(200)3=8×106
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