Answer:
Step-by-step explanation:
To rewrite the logarithm log2.8(x) as a ratio of common logarithms (logarithms with base 10) and natural logarithms (logarithms with base e, where e is approximately 2.71828), you can use the change of base formula:
log2.8(x) = (log(x) / log(2.8)) [Using common logarithms]
OR
log2.8(x) = (ln(x) / ln(2.8)) [Using natural logarithms]
So, the expressions are:
(a) In terms of common logarithms: log2.8(x) = (log(x) / log(2.8))
(b) In terms of natural logarithms: log2.8(x) = (ln(x) / ln(2.8))