Question 668209
{{{((2a)^-1)/(2a^-1)}}} = {{{(1/(2a)^1)/(2/a^2)}}}
Dividing is the same as multiplying the inverse, so
{{{(1/2a)(a^2)/2}}}
Simplify
{{{a^cross(2) / 2(2cross(a))}}} = {{{highlight_green(a/4)}}}
............
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