Proving Cos 2Npi Y Cos 2Npi Y Cos Y
Proving cos(2npi+y)=cos(2npi-y)=cos(y)
graph TD;
A[Proving cos(2npi+y)=cos(2npi-y)=cos(y)] --> B[Step 1: Define Variables];
A --> C[Step 2: Apply Trigonometric Identity];
A --> D[Step 3: Simplify Equation];
B --> E[Variable 1: n];
B --> F[Variable 2: y];
C --> G[Identity: cos(a+b) = cos(a)cos(b) - sin(a)sin(b)];
C --> H[Identity: cos(a-b) = cos(a)cos(b) + sin(a)sin(b)];
D --> I[Simplify: cos(2npi+y)];
D --> J[Simplify: cos(2npi-y)];
D --> K[Simplify: cos(y)];
