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In DeltaABC, prove that: (c-bcosA)/(b-...

In `DeltaABC`, prove that:
`(c-bcosA)/(b-ccosA)=(cosB)/(cosC)`

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To prove that in triangle \( \Delta ABC \): \[ \frac{c - b \cos A}{b - c \cos A} = \frac{\cos B}{\cos C} \] we will follow these steps: ...
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