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Masteriza [31]
3 years ago
10

Make COS the subject of the formula

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

c^2 = a^2 + b^2 - 2(ab)(cos C)

c^2 + 2(ab)(cos C) = a^2 + b^2

2(ab)(cos C) = a^2 + b^2 - c^2

cos C = (a^2 + b^2 - c^2) / 2ab - Answer choice E

Hope this helps! :)

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