Question

me ayudan porfavor?
Selecciona el inciso correcto para calcular la razón trigonométrica Cos(240°)



︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ a) cos(240°) =︎ ︎- cos(60°)
b) cos(240°) =︎ ︎ ︎︎- cos(30°)
c) cos(240°) =︎ ︎cos(60°)︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎​

Answer 1

Respuesta:

Es la a

Explicación paso a paso:

Selecciona el inciso correcto para calcular la razón trigonométrica Cos(240°)

Resolvamos:

cos 240 = cos(180 + 60)

cos 240 = cos 180 × cos 60 - sen 180 × sen 60

cos 240 = (-1) × cos 60 - (0) × sen 60

cos 240 = -cos 60 + 0

cos 240 = -cos 60

Por lo tanto, el valor de la operación es -cos 60

Answer 2

Respuesta:

no se debes ponerlo mas claro