Zusammenfassung der Ressource
Frage 1
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Please select any/all of the equations that represent the cosine rule.
Antworten
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a²=b² -c² + 2ab² cos(A)
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b² =a² + c² - 2ac cos(B)
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cos(C)=a² +b² -c² / 2ab
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a² =b² + c² -2bc cos(A)
Frage 2
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This is a worked example so you know what to do later on (if you didn't already know)
Q:Find the length of BC.
(Please select the correct working and answer)
Frage 3
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Work out the size of angle B.
Frage 4
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Work out the length of AB.