Conţinutul principal

Recapitulare pentru BAC

Lecția 2: Ecuații trigonometrice

Găsește valorile trigonometrice folosind formule pentru sume de unghiuri

Ai putea avea nevoie de: Calculator

Găsește cosine, left parenthesis, 345, degrees, right parenthesis exact folosind formula adunării sau scăderii unghiurilor.

(Varianta A)
start fraction, minus, 1, minus, square root of, 3, end square root, divided by, 2, end fraction
(Varianta B)
start fraction, square root of, 6, end square root, minus, square root of, 2, end square root, divided by, 4, end fraction
(Varianta C)
start fraction, square root of, 6, end square root, plus, square root of, 2, end square root, divided by, 4, end fraction
(Varianta D)
start fraction, square root of, 3, end square root, minus, 1, divided by, 2, end fraction

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