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secondary 3 | E Maths
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help super confused
initial vol. means at the start,
i.e. y = 0
volume = 2²⁰ km³
(b)
at y = 140 ,
140/5 = 28
20 - 28 = -8
volume = 2⁻⁸ = 1/(2⁸) km³
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