Question

cos94 degrees cos18 degrees+ sin94 degrees sin18 degrees.

write the expression as the sine, cosine, or tangent of an angle.

Answer 1

use the identity:
cos(A-B)= cosAcosB + sinAsinB

cos94°cos18° + sin94°sin18° = cos(94-18) = cos 76°

Answer 2

is that the answer?

Answer 3

yes, check it out with a calculator.