billymoore
billymoore
04-03-2017
Mathematics
contestada
prove sin(3pi-x)=sin x
Respuesta :
keisurin
keisurin
04-03-2017
sin(3pi-x)=sinx
divide by sin
3pi-x=x
2x=3pi
x = 3/2 pi
Sub x into equation:
sin(3pi-(3/2)pi)=sin(3/2pi)
3pi-(3/2)pi=3/2pi
3pi=(3/2)pi+(3/2)pi
3pi=3pi
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