Question 1105177
<br>
{{{1/(2rs) = 3/s^2}}}
"cross multiply": {{{s^2 = 6rs}}}
Get r/s on the right side by dividing both sides by 6s^2:
{{{s^2/(6s^2) = (6rs)/(6s^2)}}}
{{{1/6 = r/s}}}<br>
r/s = 1/6