aub,
Given that
is it ever possible to have
Sa+b=ſa+b?
Explain.

Answer:
Yes it is possible
Step-by-step explanation:
Now, put it all together (9). Sin (A + B) is the two parts of the opposite - all divided by the hypotenuse (9). Putting that into its trig form: A very similar construction finds the formula for the cosine of an angle made with two angles added together.