Question

Rewrite using only positive exponents. 20%7B%7D%5E%7B2%7D%20%7D%20" id="TexFormula1" title=" \frac{1}{3a ^{ - 1} b {}^{2} } " alt=" \frac{1}{3a ^{ - 1} b {}^{2} } " align="absmiddle" class="latex-formula">

Answer 1

That would be  a / 3b^2


(re call that 1 /a^-1  = a)