Valori fondamentali delle funzioni goniometriche

Valori fondamentali delle funzioni goniometriche

\[sen0^{\circ}=0,\, \, \, cos0^{\circ}=1,\, \, \, tan0^{\circ}=0,\, \, \, cot0^{\circ}= non\, \, esiste\]

\[sen30^{\circ}=\frac{1}{2},\, \, \, cos30^{\circ}=\frac{\sqrt{3}}{2},\, \, \, tan30^{\circ}=\frac{\sqrt{3}}{3},\, \, \, cot30^{\circ}=\sqrt{3},\]

\[sen45^{\circ}=\frac{\sqrt{2}}{2},\, \, \, cos45^{\circ}=\frac{\sqrt{2}}{2},\, \, \, tan30^{\circ}=1,\, \, \, cot30^{\circ}=1\]

\[sen60^{\circ}=\frac{\sqrt{3}}{2},\, \, \, cos60^{\circ}=\frac{1}{2},\, \, \, tan60^{\circ}=\sqrt{3},\, \, \, cot60^{\circ}=\frac{\sqrt{3}}{3}\]

\[sen90^{\circ}=1,\, \, \, cos90^{\circ}=0,\, \, \, tan90^{\circ}=non\, \, esiste,\, \, \, cot90^{\circ}=0\]

\[sen180^{\circ}=0,\, \, \, cos180^{\circ}=-1,\, \, \, tan180^{\circ}=0,\, \, \, cot180^{\circ}=non\, \, esiste\]

\[sen270^{\circ}=-1,\, \, \, cos270^{\circ}=0,\, \, \, tan270^{\circ}=non\, \, esiste,\, \, \, cot270^{\circ}=0\]

\[sen360^{\circ}=0,\, \, \, cos360^{\circ}=1,\, \, \, tan360^{\circ}=0,\, \, \, cot360^{\circ}=non\, \, esiste\]

Precedente Espressione delle funzioni goniometriche in funzione di una di esse Successivo Problemi e applicazioni di trigonometria