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See the attachment I think it will help you^_^
✴ Here we use ,
✴Sin ( A-B)=Sin A Cos B -CosA SinB
similarly,
✴Sin ( B-C)=Sin B Cos C-CosB SinC
✴Sin(C-A) = Sin C Cos A -Cos C Sin A
THANKS ❤^_^
#RÔYÂL CHÔRÎ ♥
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Using the Identity,
sin(A - B) = Sin A Cos B - Cos A Sin B
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