In `triangle ABC` , with the usual notations , prove that `2{a sin^(2).(C)/(2)+csin^2.(A)/(2)}=a
Channel: Doubtnut
Date: 2020-03-29

In `triangle ABC` , with the usual notations , prove that `2{a sin^(2).(C)/(2)+csin^2.(A)/(2)}=a+c-b`