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Trigonometrie

Lektion 4: Einführung in die trigonometrischen Winkeladdition-Identitäten

Verwenden der trigonometrischen Winkel-Additionsidentitäten

Bestimme cosine, left parenthesis, angle, B, A, C, minus, 60, degrees, right parenthesis.

(Auswahl A)
start fraction, 6, divided by, 13, end fraction, minus, start fraction, 5, divided by, 26, end fraction, square root of, 3, end square root
(Auswahl B)
start fraction, 5, divided by, 26, end fraction, minus, start fraction, 6, divided by, 13, end fraction, square root of, 3, end square root
(Auswahl C)
start fraction, 6, divided by, 13, end fraction, plus, start fraction, 5, divided by, 26, end fraction, square root of, 3, end square root
(Auswahl D)
start fraction, 5, divided by, 26, end fraction, plus, start fraction, 6, divided by, 13, end fraction, square root of, 3, end square root

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