Question 49324
"Yes" all of your formulae listed are correct.

Here are some more for your reference again: 

sin(A+B)=sin(A)cos(B)+cos(A)sin(B), 

sin(A-B)=sin(A)cos(B)-cos(A)sin(B), 

cos(A+B)=cos(A)cos(B)-sin(A)sin(B), 

cos(A-B)=cos(A)cos(B)+sin(A)sin(B), 

tan(A+B)=(tan(A)+tan(B))/(1-tan(A)tan(B)) 

tan(A-B)=(tan(A)-tan(B))/(1+tan(A)tan(B))