Question 1118269
<br>
(1) rewrite the expression as log4 - log8<br>
(2) Since logarithms are exponents, subtracting logarithms represents division.  So log4 - log8 = log(4/8) = log(1/2)<br>
Answer: -log8+log4 = log(1/2)<br>
The other two tutors both gave "-log2" as the answer.  The two answers are equivalent, so both are valid:<br>
log(1/2) = log1-log2 = 0-log2 = -log2<br>
or...<br>
log(1/2) = log(2^-1) = -1(log2) = -log2