Prove that sin2A+sin2B+sin2C-sin2(A+B+C)=4sin(B+C).sin(C+A).sin(A+B)
Prove that sin2A+sin2B+sin2C-sin2(A+B+C)=4sin(B+C).sin(C+A).sin(A+B)
Pujasadangi , 4 Years ago
Grade 11
Trigonometry> Prove that sin2A+sin2B+sin2C-sin2(A+B+C)=...
1 Answers
Vikas Amritiya
Last Activity: 4 Years ago
Dear student please find attachment below
Here is detailed solution of your doubts
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