已知三角形ABC中顶点坐标分别为A(-1,0)、B(1,0)、C(m,根号3)

根据正弦定理：AB/SINC=AC/SINB=BC/SINA 4/sin^2 C=(m^2+2m+4)/sin^2 B=(m+2-2m+4)/sin^2 A 4=(m^2+2m+4)*sin^2 C/sin^2 B=(m+2-2m+4)*sin^2 C/sin^2 A sin^2 A=(m^2+2m+4)*sin^2 C/4 sin^2 B==(m^2-2m+4)*sin^2 C/4...