Seudónimo Seudónimo

11-09-2021
Mathematics

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7) Given triangle ABC alongside: a) Determine an expression for Angle A in terms of B and C. b) Hence, prove that cos A = sin B sin C - cos B cos C. В. C

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swastikalamsal341 swastikalamsal341

11-09-2021

Answer:

a=sin is the answer of that question

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