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secondary 3 | A Maths
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Ivey
Ivey

secondary 3 chevron_right A Maths chevron_right Singapore

How to solve this qn?

Date Posted: 2 years ago
Views: 304
Eric Nicholas K
Eric Nicholas K
2 years ago
log2 and log5 seems to suggest log10, but it is not immediately obvious.

We need to tweak the expression slightly first, before obtaining log10.

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
A rough idea to do this question; there is an alternative method by using the fact that 2 x 5 = 10 to express our logarithm of x to base 10 instead of 2 and 5.
Ivey
Ivey
2 years ago
Thank you so much!!