3sin2w+4sinw= 0
3(2sinwcosw)+4sinw=0
6sinw3cosw 4sinw= 0
2sinw(3cosw+2)=0
2sinw=0 sinw =0. w=0 radians
3cosw +2=0
3cosw=-2
cosw=-2/3 w=2.3radians
Yazmine W.
asked 03/05/21Solve 3sin(2w)+4sin(w)=0 for all solutions 0≤w<2π
Solve 3cos(2t)=3sin2(t)+2 for all solutions 0≤t<2π
3sin2w+4sinw= 0
3(2sinwcosw)+4sinw=0
6sinw3cosw 4sinw= 0
2sinw(3cosw+2)=0
2sinw=0 sinw =0. w=0 radians
3cosw +2=0
3cosw=-2
cosw=-2/3 w=2.3radians
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