Question 882893
evaluate [(1/root 27)power 2 - {(log 13 base 5)/(2 log 9 base 5)}]power 1/2
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{{{((1/sqrt(27))^2-log(5,(13))/2log(5,(9)))^(1/2)}}}
{{{((1/27)-log(5,(13))/log(5,(81)))^(1/2)}}}
no solution:can't take sqrt of negative expression