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sin(a+b+c)+sin (a-b+c)+sin(a+b-c)

sin(a+b+c)+sin (a-b+c)+sin(a+b-c)

Grade:11

1 Answers

Rinkoo Gupta
askIITians Faculty 80 Points
8 years ago
sinpi+sin(pi-2b)+sin(pi-2c)
=0+sin2b+sin2c
=2sin(b+c)cos(b-c)

Thanks & Regards
Rinkoo Gupta
AskIITians Faculty

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