Solve sin50^circ*cos20^circ-cos50^circsin20^circ

$$\sin 50 ^ { \circ } \cdot \cos 20 ^ { \circ } - \cos 50 ^ { \circ } \sin 20 ^ { \circ }$$

Evaluate

$$0.51132442638164330401414310610322$$

Solution Steps

Evaluate trigonometric functions in the problem

$$0.7311707367745975 - 0.6427876096865394 \cdot 0.3420201433256687$$

Multiply 0.6427876096865394 and 0.3420201433256687 to get 0.21984631039295419598585689389678.

$$0.7311707367745975-0.21984631039295419598585689389678$$

Subtract 0.21984631039295419598585689389678 from 0.7311707367745975 to get 0.51132442638164330401414310610322.

$$0.51132442638164330401414310610322$$

Factor

$$\frac{7 \cdot 71 \cdot 154181 \cdot 333640910184805856179973}{2 ^ {31} \cdot 5 ^ {32}} = 0.5113244263816432$$