SOLUTION: (cos250*cos25) + (sin250*sin25) a.k.a. (the cosine of 250 degrees multiplied by the cosine of 25 degrees) plus (the sine of 250 degrees multiplied by the sine of 25 degrees)

SOLUTION: (cos250cos25) + (sin250sin25) a.k.a. (the cosine of 250 degrees multiplied by the cosine of 25 degrees) plus (the sine of 250 degrees multiplied by the sine of 25 degrees)

Question 41984: (cos250*cos25) + (sin250*sin25)
a.k.a. (the cosine of 250 degrees multiplied by the cosine of 25 degrees) plus (the sine of 250 degrees multiplied by the sine of 25 degrees)
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
cosAcosB + sinAsinB = cos(A-B) so that
(cos250*cos25) + (sin250*sin25) =
cos(250-25) = cos(225) = -rad(2) / 2
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