Exerciții folosind funcțiile sin, cos, tg, ctg. Matematica clasa a 9-a
6:43
eduboom.ro
Exerciții folosind funcțiile sin, cos, tg, ctg. Matematica clasa a 9-a
La capitolul de trigonometrie, studiat în clasa a IX-a la matematică, vei avea de rezolvat multe exerciții cu funcțiile trigonometrice sinus, cosinus, tangentă, cotangentă. Între acestea, se pot demonstra o serie de relații. Vezi cum se demonstrează, pas cu pas, o serie de astfel de relații în această lecție-video, care a fost ...
Feb 10, 2021
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