삼각함수 각변환 공식 3월 30, 20253월 24, 2025 by 관리자 Contents1 삼각함수 각변환 공식2 1. sin함수2.0.0.1 1) sin(±θ)=±sinθ2.0.0.2 2) sin(π/2±θ)=cosθ2.0.0.3 3) sin(π±θ)=∓sinθ2.0.0.4 4) sin(3π/2±θ)=-cosθ2.0.0.5 5) sin(2π±θ)=±sinθ3 2. cos함수3.0.0.1 1) cos(±θ)=cosθ3.0.0.2 2) cos(π/2±θ)=∓sinθ3.0.0.3 3) cos(π±θ)=-cosθ3.0.0.4 4) cos(3π/2±θ)=±sinθ3.0.0.5 5) cos(2π±θ)=cosθ4 3. tan함수4.0.0.1 1) tan(±θ)=±tanθ4.0.0.2 2) tan(π/2±θ)=∓1/tanθ4.0.0.3 3) tan(π±θ)=±tanθ4.0.0.4 4) tan(3π/2±θ)=∓1/tanθ4.0.0.5 5) tan(2π±θ)=±tanθ 삼각함수 각변환 공식 삼각함수 기본 1. sin함수 1) sin(±θ)=±sinθ 2) sin(π/2±θ)=cosθ 3) sin(π±θ)=∓sinθ 4) sin(3π/2±θ)=-cosθ 5) sin(2π±θ)=±sinθ 2. cos함수 1) cos(±θ)=cosθ 2) cos(π/2±θ)=∓sinθ 3) cos(π±θ)=-cosθ 4) cos(3π/2±θ)=±sinθ 5) cos(2π±θ)=cosθ 3. tan함수 1) tan(±θ)=±tanθ 2) tan(π/2±θ)=∓1/tanθ 3) tan(π±θ)=±tanθ 4) tan(3π/2±θ)=∓1/tanθ 5) tan(2π±θ)=±tanθ
