Angoli opposti
Author: Paolo Urbani

Puoi muovere il punto P

Angoli opposti

sen(-α)= -senα

β =  - α 

cos(-α)= cosα

tg(-α)= - tgα

D = (-1, 0)
A = (1, 0)
O = (0, 0)
c = Circle(O, 1)
P = Point(c)
α = Angle(A, O, P)
B = Rotate(A, -α)
a = Segment(P, O)
b = Segment(B, O)
β = Angle(B, O, A)
C = (0, -1)
H: (x(P), 0)
K: (x(B), 0)
senα = Segment(P, H)
cosα = Segment(O, H)
senβ = Segment(K, B)
cosβ = Segment(K, O)
text4: "sen" + β + "= - sen" + α + "=" + (sin(β))
text5: "cos" + β + "= cos" + α + "=" + (cos(β))
text6: "tg" + β + "=-tg" + α + "=" + (tan(β))
text8: "α=" + α
text9: "β=- " + β