Calculating Tan X Tan X±
Calculating tan (-x), tan (x±?)
graph TB
A[Calculating tan (-x), tan (x±?)]
B[Tan (-x)]
C[Tan (x±?)]
D[Trigonometric Identities]
E[Even-Odd Identities]
F[Co-Function Identities]
G[Sum-Difference Formulas]
H[Multiple-Angle Formulas]
I[Half-Angle Formulas]
A --> B
A --> C
B --> D
C --> D
D --> E
D --> F
D --> G
D --> H
D --> I
