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If cos A+cos B +cosC = sin A+sin B + sinC = 0 and A +B +C = π then the value of cos3A+ cos3B + cos3C is

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in JEE by kratos

If cos A+cos B +cosC = sin A+sin B + sinC = 0 and A +B +C = π then the value of cos3A+ cos3B + cos3C is

(1) 3

(2) – 3

(3) √3

(4) 0

1 Answer

+6 votes
by kratos
 
Best answer

Correct Option (2) – 3

Explanation:

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