Question

in any Trianlge ABC prove that
a^2sin(B-C)/(sinB+sinC) +b^2sin(C-A)/(sinC+sinA) + c^2sin(A-B)/(sinA+sinB) =0

Answer 1

Can you please just write :

$- > a = 2R \sin(A)$
And continue ??

# Check the soln and try again :smile:

#Anyways... have a great day User ^_^