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Mathematics, 08.06.2021 20:20 izzyisawesome5232
Show that, t for any triangle ABC, even if B or C is an obtuse angle, a = b cos C + c cos B. Use the Law of Sines to deduce the "addition formula" sin (B + C) = sin B cos C + sin C cos B.
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Show that, t for any triangle ABC, even if B or C is an obtuse angle, a = b cos C + c cos B. Use the...
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