Question

Calcule: 2.sen90°−4.cos180°+3.sen270°
3.sen0°+2.sen90°
ME AJUDEM POR FAVOOOR ?????

Answer 1

Sen90= 1, Cos180= -1, Sen 270= -1, Sen 0=0

2.Sen90°−4.Cos180°+3.Sen270° .3.Sen0°+2.Sen90°

2.1-4(-1)+3.(-1).3.0+2.1

2+4+0+2=8

Resposta: 8