Question

calcular cotg de 780...( com cálculos) please

Answer 1

780° ≈ 60°

$Logo \ cotg(780^o)=cotg(60^o)=\frac{cos(60^o)}{sen(60^o)}=\frac{1}{2}:\frac{\sqrt3}{2}=\frac{1}{2}.\frac{2}{\sqrt3}=\frac{1}{\sqrt3}=\frac{\sqrt3}{3}$