Prove That

(Sin^3 A).(Sin(B-C)) + (Sin^3 B).(Sin(C-A)) + (Sin^3 C).(Sin(A-B)) = 0

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- November 25th 2011, 09:45 PMmathsisalwayscoolSolution of triangles.
Prove That

(Sin^3 A).(Sin(B-C)) + (Sin^3 B).(Sin(C-A)) + (Sin^3 C).(Sin(A-B)) = 0 - November 26th 2011, 08:10 AMsbhatnagarRe: Solution of triangles.Quote:

Prove

**Assuming that are angles of a triangle:**

This means:

Also:

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**So:**

I guess there's a much easier way.