SOLUTION: Write the expression as the sine, cosine, or tangent of an angle. cos 94� cos 37� + sin 94� sin 37�

SOLUTION: Write the expression as the sine, cosine, or tangent of an angle. cos 94� cos 37� + sin 94� sin 37�

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Question 642540: Write the expression as the sine, cosine, or tangent of an angle.
cos 94� cos 37� + sin 94� sin 37�

Answer by Century(7) (Show Source): You can put this solution on YOUR website!
In order to do this problem you will need to use the formula for the cosine of a difference which is

Thus cos(94�)cos(37�)+sin(94�)sin(37�)=cos(94�-37�) or
cos(94�)cos(37�)+sin(94�)sin(37�) = cos(57�)
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