Which is the simplified form of n⁻⁶ * p³; (n⁶)/(rho³); 1/(n⁶ * p³); (p³)/(n⁶); n⁶ * p³?
1) n⁻⁶ * p³
2) (n⁶)/(rho³)
3) 1/(n⁶ * p³)
4) (p³)/(n⁶)
5) n⁶ * p³