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Multiply both sides by 2: n(n + 1) = 420. - AMAZONAWS
Multiply both sides by 2: n(n + 1) = 420. - AMAZONAWS
📅 March 11, 2026
👤 scraface
Mar 11, 2026
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📌 Number of doubling periods:
📌 Annual growth rate = 0.025168 × 100 ≈ <<0.025168*100=2.5168>>2.52%.
📌 But actually, $ \frac{\pi r^2}{2\sqrt{3} r^2} = \frac{\pi}{2\sqrt{3}} $, so A is correct.
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