Solve for T
T=\pi \sqrt{\frac{2\left(h^{2}+k^{2}\right)}{gh}}
\left(g<0\text{ and }h<0\right)\text{ or }\left(h>0\text{ and }g>0\right)
Solve for g
g=\frac{2\times \left(\frac{\pi }{T}\right)^{2}\left(h^{2}+k^{2}\right)}{h}
T>0\text{ and }h\neq 0
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