SOLUTION: Hello! I need help solving this: Write the expression as the sine, cosine, or tangent of an angle. sin 64� cos 92� + cos 64� sin 92� Thank you

Question 978115: Hello!
I need help solving this:
Write the expression as the sine, cosine, or tangent of an angle.
sin 64� cos 92� + cos 64� sin 92�
Thank you
Answer by ikleyn(52805) (Show Source): You can put this solution on YOUR website!

Use the addition formula for sines of Trigonometry (see, for example, the lesson Addition and subtraction formulas of this site)

sin(64�)*cos(92�) + cos(64�)*sin(92�) = sin(64� + 92�) = sin(156�) =

= sin(180�-156�) = sin(24�). (Now use the reduction formula for sines).

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