In any ABC, prove that `(b^2-c^2)/(a^2) sin 2A +(c^2-a^2)/(b^2) sin 2B + (a^2-b^2)/(c^2) sin 2C =0`

In any ABC ,prove that (b^(2)-c^(2))/(a^(2))sin2A+(c^(2)-a^(2))/(b^(2))sin2B+(a^(2)-b^(2))/(c^(2))sin2C=0

For any triangle ABC,prove that (b^(2)-c^(2))/(a^(2))sin2A+(c^(2)-a^(2))/(b^(2))sin2B+(a^(2)-b^(2))/(c^(2))sin2C=0

In a ABC, prove that: ((b^(2)-c^(2))/(a^(2)))sin2A+((c^(2)-a^(2))/(b^(2)))sin2B+((a^(2)-b^(2))/(c^(2)))sin2C=0

In any DeltaABC , prove that ((b^(2)-c^(2)))/a^(2)"sin 2a"+((c^(2)-a^(2)))/b^(2)" sin 2B+"((a^(2)-b^(2)))/c^(2)"sin 2C=0"

In any Delta ABC, prove that :(b^(2)-c^(2))sin^(2)A+(c^(2)-a^(2))sin^(2)B+(a^(2)-b^(2))sin^(2)C=0

In any Delta ABC, prove that :(b^(2)-c^(2))/(a^(2))=(sin(B-C))/(sin(B+C))

In triangle ABC , prove that (sin(A-B))/(sin(A+B))=(a^2-b^2)/(c^2) .

In any Delta ABC, prove that b^(2)sin2C+c^(2)sin2B=2bc sin A=4Delta

In triangle ABC , prove that b^2sin2C+c^2sin2B=2bcsinA .