Question

помогите выразить g

Answer 1

$T=2pi sqrt{ frac{l}{g} } \ g= frac{4pi^2l}{T^2}$

Answer 2

$T=2pi sqrt{ frac{1}{g} } \\ sqrt{ frac{1}{g} }= frac{T}{2pi} \\ frac{1}{g}=( frac{T}{2pi})^2\\g=( frac{2pi}{T} )^2$