Rt△ABC中,sinB=根号3/2,则cosB/2=?Rt△ABC中,sinB=根号3/2,则cos(B/2)=?
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Rt△ABC中,sinB=根号3/2,则cosB/2=?Rt△ABC中,sinB=根号3/2,则cos(B/2)=?
Rt△ABC中,sinB=根号3/2,则cosB/2=?
Rt△ABC中,sinB=根号3/2,则cos(B/2)=?
Rt△ABC中,sinB=根号3/2,则cosB/2=?Rt△ABC中,sinB=根号3/2,则cos(B/2)=?
Rt△ABC中,sinB=根号3/2,
B=60度
cos(B/2)=cos30=根号3/2
Rt△ABC中,sinB=根号3/2,
则B=60度,
cos(B/2)=cos30=根号3/2,