= sin$pi$cos$pi$/5 + 4cos$pi/3$sin$5</em>pi/2$

= 0 0 /5 + 4 $-1/2$ * 1

= 0 + 4 * $-1/2$

= 0 - 2

= -2

Therefore, sin$pi$cos$pi$/5 + 4cos$pi/3$sin$5</em>pi/2$ = -2.