m*n=根号3sinAcosB+根号3sinBcosA
=根号3sin(A+B)=1+cos(A+B)
根号3sin(A+B)-cos(A+B)=1
2sin(A+B-π/6)=1
sin(A+B-π/6)=1/2
A+B-π/6=π/2
A+B=2π/3
C=π-(A+B)=π/3
m*n=根号3sinAcosB+根号3sinBcosA
=根号3sin(A+B)=1+cos(A+B)
根号3sin(A+B)-cos(A+B)=1
2sin(A+B-π/6)=1
sin(A+B-π/6)=1/2
A+B-π/6=π/2
A+B=2π/3
C=π-(A+B)=π/3