WBJEE · Maths · Properties of Triangles
In a \(\triangle A B C, a, b, c\) are the sides of the triangle opposite to the angles \(A, B, C,\) respectively. Then, the value of \(a^{3} \sin (B-C)\) \(+b^{3} \sin (C-A)+c^{3} \sin (A-B)\) is equal to
- A 0
- B 1
- C 3
- D 2
Answer & Solution
Correct Answer
(A) 0
Step-by-step Solution
Detailed explanation
\(\sum a^{3} \sin (B-C)\) \(=\sum k^{3} \sin ^{3} A \sin (B-C)\)…
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