trigoncycle_coslaw

\footnotesize{\underbrace{  συν(\frac{π}{4}+x  )}}

x

\underbrace{     ημx     }

\frac{π}{2}+x

 \Biggr\} ημx  

O = Intersect(xAxis, yAxis)
c = Circle(O, 1)
Β = Point(c)
f = Segment(O, Β)
g = OrthogonalLine(Β, xAxis)
Ε = Point(xAxis)
α = Angle(Ε, O, Β)
Γ = Rotate(Β, 45°, O)
β = Angle(Β, O, Γ)
h = Segment(O, Γ)
Δ = Rotate(Β, 90°, O)
γ = Angle(Β, O, Δ)
i = Segment(O, Δ)
j = OrthogonalLine(Γ, xAxis)
k = OrthogonalLine(Δ, xAxis)
Α = Intersect(j, xAxis)
Ζ = Intersect(k, xAxis)
l = Segment(Γ, Α)
m = Segment(Δ, Ζ)
Η = Point(f)
Θ = Point(i)
d = CircleArc(O, Η, Θ)
b: sqrt(2 - sqrt(2))
e: 180 / 8
Ι = Point(xAxis)
δ = Angle(Ι, O, Β)
a: cos(pi / 4 + δ) + sin(δ)
κείμενο5: "συν(\frac{π}{4}+x)+ημx=" + (LaTeX[a]) + ""
κείμενο7: "x=" + δ + ""
n = Segment(Γ, Δ)
p = OrthogonalLine(Β, xAxis)
Κ = Intersect(p, xAxis)
q = Segment(Β, Κ)
Λ = Point(xAxis)
Μ = Point(i)
r = CircleArc(O, Λ, Μ)