tanA=2tanB
cos(A+B)=4/5,cos(A-B)=2√6/5.
sinAsinB=(cos(A-B)-cos(A+B))/2=(2-√6)/5
AB/tanA+h/tanB=3
AB=3(tanA*tanB)/(tanA+tanB)
=3sinAsinB/sin(A+B)=2-√6
tanA=2tanB
cos(A+B)=4/5,cos(A-B)=2√6/5.
sinAsinB=(cos(A-B)-cos(A+B))/2=(2-√6)/5
AB/tanA+h/tanB=3
AB=3(tanA*tanB)/(tanA+tanB)
=3sinAsinB/sin(A+B)=2-√6