OP=1

sin α

cos α

tan α

c: x^(2) + y^(2) = 1
P = Point(c)
f = OrthogonalLine(P, yAxis)
g = OrthogonalLine(P, xAxis)
P_x = Intersect(g, xAxis)
P_y = Intersect(f, yAxis)
O = Intersect(xAxis, yAxis)
h = Segment(O, P)
i = Segment(P, P_x)
j = Segment(P_y, P)
A_1 = Intersect(c, xAxis, 2)
α = Angle(A_1, O, P)
k = Tangent(P, c)
A = Intersect(k, xAxis)
l = Segment(P, A)
Siinus: y(P)
Koosinus: x(P)
Tangens: Siinus / Koosinus
tekst3: "tan \; α≈" + (LaTeX[Tangens]) + ""
tekst2: "cos \;  α≈" + (LaTeX[Koosinus]) + ""
tekst1: "sin  \; α≈" + (LaTeX[Siinus]) + ""