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Matematica-Trigonometrie [1] Formule Pentru Sinus, Cosinus, Tangenta Si Cotangen
This is the first 1,000 characters of 184 words (0.74 pages) in the essay titled Matematica-Trigonometrie [1] Formule Pentru Sinus, Cosinus, Tangenta Si Cotangen
| Matematica-Trigonometrie [1] Formule pentru sinus, cosinus, tangenta si cotangenta
Formule pentru sin(a+b), cos(a+b), sin(a-b), cos(a-b) ; cos (a - b) = cos a * cos b + sin a * sin b cos (a + b) = cos a * cos b – sin a * sin b sin (a - b) = sin a * cos a – sin b * cos b sin (a + b) = sin a * cos a + sin b * cos b sin ( - x) = cos x cos ( - x) = sin x tg (a + b) = tg (a – b) = Formule pentru dublul unui unghi sin 2x = 2 sin x cos x cos 2x = cos2x – sin2x cos 2x = 1 – 2 sin2x cos 2x = 2 cos2x – 1 tg 2x = ctg 2x = Formule pentru jumatatea unui unghi sin = ± cos = ± tg = ± tg [1] Kmeleonu – clasa IX-D ma... |
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