Welke formule geldt er in een willekeurige ΔABC ? (zijden a, b, c staan resp. tegenover de hoeken A, B, C; R=straal van de omgeschreven cirkel) |
A. \(2R = \frac {a} {\sin A} = \frac {b} {\sin B} = \frac {c} {\sin C}\) |
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B. \(\frac {\sin A} {a} = \frac {\sin B} {b} = \frac {\sin C} {c}= 2R\) | |
C. \(\frac {\sin B} {b} = \frac {\sin C} {c} = \frac {\sin A} {a}= \frac {1}{2R}\) | |
D. \(\frac {a} {\sin A} = \frac {b} {\sin B} = \frac {c} {\sin C}=R\) | |
E. \(\frac {a^2} {\sin^2 A} = \frac {b^2} {\sin^2 B} = \frac {c^2} {\sin^2 C}=2R^2\) |
[ 4-1966 - op net sinds 11.4.13-(e)-4.11.2024 ]
Which formula represents the law of sines ? |
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