Sum to Product Calculator degree / radian , u = ( )° , v = ( )° reset calc √ π + - · ÷ . 0 1 2 3 4 5 6 7 8 9

Product to sum formulas: Sin (u)Sin (v) = 1/2 [ cos (u-v) - cos (u+v)] Cos (u)Cos (v) = 1/2 [ cos (u-v) + cos (u+v)] Sin (u)Cos (v) = 1/2 [ sin (u+v) + sin (u-v)] Cos (u)Sin (v) = 1/2 [ sin (u+v) - sin (u-v)]