根据正弦定理,b/sinB=a/sinA,a=2√3,A=π/3,B=x,b=4sinx,c/sinC=a/sinA,c=2√3/(√3/2)*sinC=4sinC=4sin(A+B)=4sin(π/3+x)=2√3cosx+2sinx周长:y=a+b+c=2√3+4sinx+2√3cosx+2sinx=2√3+6sinx+2√3cosx0<x<...