Guest

cosA+cosB+cosC=sinA+sinB+sinC=0 THEN PROVE (1)cos3A+cos3B+cos3C=3cos(A+B+C), (2)sin3A+sin3B+sin3C=3SIN(A+B+C)

cosA+cosB+cosC=sinA+sinB+sinC=0 THEN PROVE (1)cos3A+cos3B+cos3C=3cos(A+B+C), (2)sin3A+sin3B+sin3C=3SIN(A+B+C)

Grade:11

1 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
10 years ago
Hi

Thanks & Regards, Arun Kumar, Btech,IIT Delhi, Askiitians Faculty

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free