Mathematics, 21.04.2021 23:20, isabella20142002

B 5 m InABC, AB - AC - and ABC - ACB =
In ABC, CBD = BBD - BBC = x and DC-
6.1 Use the cosine rule to show - 2dcos

$x = 2d \cos(e)$

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B 5 m InABC, AB - AC - and ABC - ACB =
In ABC, CBD = BBD - BBC = x and DC-
6.1 Use the c...