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Aniss
@Aniss
July 2022
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Решите уравнение 3sin^2x+sin x cos x=2cos^2x
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vadim899
Перенесём cos влево и разделим всё имеющиеся у нас на cos^2
получим:
3tg^2x+tgx-2=0
t=tgx
D=25
t1=-1
t2=2/3
t1=-pi/4+pik
t2=arctg(2/3)+pik
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Answers & Comments
получим:
3tg^2x+tgx-2=0
t=tgx
D=25
t1=-1
t2=2/3
t1=-pi/4+pik
t2=arctg(2/3)+pik