삼각법

Trigonometriy 삼각법 

빗변, 대변, 인접변

 

Hypotenuse 빗변 

Opposite 대변 

Adjacent 인접변 

sin(sine) Θ = Opposite / Hypotenuse (SOH)

cos(cosine) Θ = Adjacent / Hypotenuse (CAH)

tan(tangent) Θ = Opposite / Adjacent (TOA)

암기법 SOH CAH TOA

 

Pythagorean trig identity 삼각함수 제곱공식

 

 

Sin & cos of complementary angles 여각의 sin & cos

 

역삼각비 Reciprocal trig ratios

sin(sine) Θ = Opposite / Hypotenuse (SOH)

→ csc(cosecant) Θ = Hypotenuse / Opposite 

cos(cosine) Θ = Adjacent / Hypotenuse (CAH)

→ sec(secant) Θ = Hypotenuse / Adjacent 

tan(tangent) Θ = Opposite / Adjacent (TOA)

→ cot(cotangent) Θ = Adjacent / Opposite 

 

• Right Triangle 직각 삼각형
• Trigonometriy 삼각법
• complementary angles 여각
• Reciprocal 상호적인, 역의