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secondary 3 | A Maths
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MM
MM

secondary 3 chevron_right A Maths chevron_right Singapore

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Date Posted: 4 years ago
Views: 248

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Georgia Jansen
Georgia Jansen's answer
2 answers (A Helpful Person)
1st
Ask if u need further clarification
MM
MM
4 years ago
Sry i don't think your answer is correct. The given answer here is 3 or 1/27
J
J
4 years ago
Fifth line is incorrect.

1/(log3(x)) = (log3(x))^-1, which is not the same as log3(x^(-1))
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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
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MM
MM
4 years ago
Thanks man
zhu chenqiu
Zhu Chenqiu
4 years ago
when do you need to reject, because for some question, you rejected the negative
Eric Nicholas K
Eric Nicholas K
4 years ago
Important is to realise that the original logarithm may not be defined. In particular, the question contains log 3 x, where x cannot be negative due to the logarithmic properties.

So, if x appears as a negative value, it would be inadmissible as a solution, since log 3 (negative number) is not defined.