Question 991983
T=2Pi sqrt(K^2+h^2/gh)

and I have to isolate the variable K
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{{{T=2pi*sqrt(K^2+h^2/gh)}}}
{{{T^2 = 4pi^2*(K^2+h^2/gh)}}}
{{{T^2 = 4pi^2*K^2/gh + 4pi^2*h^2/gh}}}
{{{4pi^2*K^2/gh = 4pi^2*h^2/gh - T^2}}}
{{{4pi^2*K^2 = gh*(4pi^2*h^2/gh - T^2)}}}
{{{K^2 = (gh*(4pi^2*h^2/gh - T^2)/(4pi^2))}}}
{{{K = sqrt((gh*(4pi^2*h^2/gh - T^2)))/(2pi))}}}