cos(41°)cos(19°) - sin(41°)sin(19°)
Using the trigonometric identity cos(A)cos(B) - sin(A)sin(B) = cos(A + B):
cos(41° + 19°)cos(60°)
Therefore, the value is 0.5.
cos(41°)cos(19°) - sin(41°)sin(19°)
Using the trigonometric identity cos(A)cos(B) - sin(A)sin(B) = cos(A + B):
cos(41° + 19°)
cos(60°)
Therefore, the value is 0.5.