In a Δ𝐴𝐵𝐶, show that Σ(𝑏+𝑐)cos𝐴=2𝑠 where 𝑠=𝑎+𝑏+𝑐2

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In a Δ𝐴𝐵𝐶, show that Σ(𝑏+𝑐)cos𝐴=2𝑠 where 𝑠=𝑎+𝑏+𝑐2

In a Δ𝐴𝐵𝐶, show that Σ(𝑏+𝑐)cos𝐴=2𝑠 where 𝑠=𝑎+𝑏+𝑐2

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In a Δ𝐴𝐵𝐶, show that Σ(𝑏+𝑐)cos𝐴=2𝑠 where 𝑠=𝑎+𝑏+𝑐2

In a Δ𝐴𝐵𝐶, show that Σ(𝑏+𝑐)cos𝐴=2𝑠 where 𝑠=𝑎+𝑏+𝑐2

1 Answers

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