Write the expression as the sine, cosine, or tangent of an angle. sin 50° cos 5° + cos 50° sin 5° (Don't forget to simply the expression)

Answer 1

sin55 = sin(50+5) = sin50cos5 + cos50sin5

sin55 is as simple as it gets, unless you want to use a calculator to get a decimal number. since sin60 = sqr3/2 = 1.732/2 = 0.866, sin55 would be slightly less.

A calculator has sin55 = 0.819152