Calculus
cot(P)=6\cot\left(P\right)=6cot(P)=6
cot(P)=135\cot\left(P\right)=\frac{1}{\sqrt{35}}cot(P)=351
cot(P)=35\cot\left(P\right)=\sqrt{35}cot(P)=35
cot(P)=635\cot\left(P\right)=\frac{6}{\sqrt{35}}cot(P)=356