1.

In any triangle `A B C ,`prove that: ` a^3sin(B-C)+b^3sin(C-A)+c^3sin(A-B)=0`A. `a^(2)b^(2)+b^(2)c^(2)+a^(2)c^(2)`B. `a+b+c`C. `a^(2)+b^(2)+c^(2)`D. `0`

Answer» Correct Answer - D


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