ПОМОГИТЕ РЕШИТЬ ПОЖАЛУЙСТА 3cos2x - cos2x = 0
4 sinx + 5 cosx = 4
Sin4x + cos4x = cos2 2x + 1/4
2 sin2x + sinx - 3 = 0
tgx= 3 ctg x
Tgx= 2 -tg2
4 sinx + 5 cosx = 4
Sin4x + cos4x = cos2 2x + 1/4
2 sin2x + sinx - 3 = 0
tgx= 3 ctg x
Tgx= 2 -tg2
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