( \cos ( 47.56 ) \cos ( 20.14 ) \sin ( 113.64 ) +( \frac{ 2 \times 3.14 \times 113.64 }{ 360 } ) \sin ( 47.56 ) \sin ( 20.14 ) =
Evaluate
\frac{75000\sin(113.64)\cos(20.14)\cos(47.56)+148679\sin(20.14)\sin(47.56)}{75000}\approx -0.934216188
Factor
\frac{75000\sin(113.64)\cos(20.14)\cos(47.56)+148679\sin(20.14)\sin(47.56)}{75000}
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