Question

How do you derive the general solutions for sine, cosine, and tangent?

Answer 1

Answer:

1. E1(sin X,cos X,tan X,)=E2 (sin X,cos X,tan X)....
2. Also, read:
3. Theorem 1: For any real number X and Y, sin X=sin Y implies X = n+(-1)ny, where n€z
4. proof: consider the equation, sin X=sin Y.....
5. Theorem 2:for any real numbers X and Y, cos X =cos Y, implies X= 2n +- Y, where n€z