Trigonometriske formler

Question 1

tan V

Answer 1

Motstående / Hosliggende

Question 2

sin V

Answer 2

Motsående / Hypotenus

Question 3

cos V

Answer 3

Hosliggende / Hypotenus

Question 4

Cossinussetningen

Answer 4

a^2 = b^2 + c^2 − 2bc ⋅ cos A

b^2 = a^2 + c^2 − 2ac ⋅ cos B

c^2 = a^2 + b^2 − 2ab ⋅ cos C

Question 5

Arealsetningen

Answer 5

Areal = 1/2 ⋅ bc ⋅ sin A

Areal = 1/2 ⋅ ac ⋅ sin B

Areal = 1/2 ⋅ ab ⋅ sin C

Question 6

Sinussetningen

Answer 6

sin A / a = sin B / b = sin C / c

a / sin A = b / sin B = c / sin C