4sin450 + 3cos120 + 7sin390*
= 4(0) + 3(-0.5) + 7(-0.5)= 0 - 1.5 - 3.5= -5
Therefore, 4sin450 + 3cos120 + 7sin390* equals -5.
4sin450 + 3cos120 + 7sin390*
= 4(0) + 3(-0.5) + 7(-0.5)
= 0 - 1.5 - 3.5
= -5
Therefore, 4sin450 + 3cos120 + 7sin390* equals -5.