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secondary 3 | E Maths
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Rtyxse, do take note of the phrasing “as a power of 2”. This is because such a question appeared in the O Levels a few years ago and I recalled that when my student asked me about that question he attempted, he mistook “as a power of 2” as “to the power of 2” and ended up writing 2 as the power rather than the base.
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