cos13cos50 - sin13sin50 the integers are in degrees. not radians.
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Originally Posted by GUNSLINGAZ cos13cos50 - sin13sin50 the integers are in degrees. not radians. $\displaystyle cos(A+B) = \cos(A) \cos(B) - \sin(A) \sin(B)$ Can you express your question in terms of $\displaystyle \cos(A+B)$ now?
oh yeah! thanks! i can do it now.
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