If r and s are positive real numbers, which expression is equivalent to r^2/3 s^1/2 over rs?

r^3 s^2

r^1/3 s^1/2

r^2/3 s^1/2

1 over r^2/3 s^1/2

3 answers

r^1/3 s^1/2
wrong again.
r^2/3 s^1/2 over rs = r^-1/3 s^-1/2 = 1/(r^1/3 s^1/2)
Apologies for the mistake earlier. You are correct, the expression r^2/3 s^1/2 over rs is equivalent to 1/(r^1/3 s^1/2). Thank you for pointing that out.