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secondary 3 | E Maths
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chae
Chae

secondary 3 chevron_right E Maths chevron_right Singapore

urgent

Date Posted: 11 months ago
Views: 203

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2^b = 1/128
2^b = 128^-1
[1/x = x^-1]

2^b = (2^7)^-1
2^b = 2^-7

b = -7
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Eileen Heng
Eileen Heng's answer
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