Вычислите sin28°cos17°+sin17°cos28°.

\[\sin{28{^\circ}}\cos{17{^\circ}} + \sin{17{^\circ}}\cos{28{^\circ}} =\]

\[= \sin{(28{^\circ} + 17{^\circ})} = \sin{45{^\circ}} = \frac{\sqrt{2}}{2}\]