質問: सिद्ध कीजिए - `tan^(-1).(a-b)/(1+ab)+tan^(-1).(b-c)/(1+bc)+tan^(-1).(c-a)/(1+ca)=0.` सिद्ध कीजिए - `tan^(-1).(a-b)/(1+ab)+tan^(-1).(b-c)/(1+bc)+tan^(-1).(c-a)/(1+ca)=0.`
回答: find answer in image to clear your doubt instantly: