Question 1203770
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Or, most unfortunately, some references use the very bad language in which "log of a to the power b" means {{{log(b,a)}}}<br>
That, unfortunately, is the interpretation that leads to a relatively simple answer:<br>
{{{log(25,(0.2))}}}
{{{log(25,(1/5))}}}
{{{log(5,(1/5))/log(5,(25))}}}
{{{(-1)/2=-(1/2)}}}<br>
ANSWER: -1/2<br>
CHECK: {{{25^(-1/2)=(1/25)^(1/2)=1/5 = 0.2}}}<br>