質問: 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 `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"`
回答: step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.