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)"];
BETA
