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Please provide me full solution
The answer given is A and C.
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ABC , 7 Years ago
Grade 11
anser 1 Answers
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AI=b+c, DI=a, AI/DI=b+c/a, from sine formula, b=ksinB, c=ksinC, a=ksinA, so b+c/a=sinB+sinC/sinA.Apply sum formula and double formula. 
Last Activity: 7 Years ago
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