Trigonometria

Repaso de Trigonometría:

180º = π radianes ≈ 3.1415927 ; Periodo del Senα y cosα: 2π F(Φ+K.360º) = F(Φ) ó F(Φ+K.2π) = F(Φ)
Periodo de la tangente : π
Sen(α)= CO/H = a/c Sen(β) = b/c Sec (α) = 1 / Cos (α)
β c Cos(α) = CA/H = b/c Cos(β) = a/c Csc (α) =1 / Sen (α)
a Tg(α) = CO/CA=Sen(α)/Cos(α) = a/b Ctg (α) = 1 / Tg (α)
α Sen(30º) = Cos(60º) = 1/2
b Si α +β = 90º , entonces: Sen (α)=Cos (β) ; Sen(45º) = Cos(45º) =√2/2 ; 90º = π/2
Sen(60º) = Cos(30º) =√3/2 ;
Sen2 (A)+Cos2 (A) = 1 ;Sec2 (A) = 1+Tg2 (A) ; Csc2(A) = 1+Ctg2 (A)

Sen (A±B) = Sen (A).Cos (B) ± Cos (A).Sen (B) Cos (A±B) = Cos (A).Cos (B) + Sen (A).Sen (B)

Tg (A) + Tg(B) Tg (A) - Tg (B)
Tg (A + B) = ------------------------ Tg (A - B) = --------------------------
1 – Tg (A). Tg (B)1 + Tg (A). Tg (B)

2Tg(A/2)
Sen(A) = 2Sen(A/2).Cos(A/2) ; Cos(A) =Cos2(A/2)-Sen2(A/2) ; Tg(A) = -------------------
1 – Tg2 (A/2)2Tg(A) Sen (2A) = 2Sen(A).Cos(A) ; Cos (2A) = Cos2(A) –Sen2(A). Tg(2A) = ------------------ = 1-2Sen2(A) = 2Cos2(A)-1 1 – Tg2 (A)...