Решите тригонометрические уравнения: 1. 6cos2 x – 7cos x – 5 = 0 2. 3cos2 x + 7sin x – 7 = 0 3. 3sin2 x + 7sin x cos x + 2cos2 x = 0 4. 2 tg x – 4ctg x + 7 = 0 5. sin 2x – 22cos2 x + 10 = 0 6. 2sin2 x – 3sin 2x – 4cos 2x = 4 | Решите тригонометрические уравнения: 1. 5sin2 x + 12sin x + 7 = 0 2. 10sin2 x – 11cos x – 2 = 0 3. 4sin2 x + 13sin x cos x + 3cos2 x = 0 4. 6 tg x – 10ctg x + 7 = 0 5. 14cos2 x + 5sin 2x = 2 6. 4sin 2x = 4 – cos 2x | Решите тригонометрические уравнения: 1. 6cos2 x + 11cos x + 4 = 0 2. 2cos2 x – 3sin x + 3 = 0 3. 2sin2 x + 7sin x cos x + 6cos2 x = 0 4. 4 tg x – 3ctg x + 11 = 0 5. 9sin 2x + 22sin2 x = 20 6. 8sin2 x + 7sin 2x + 3cos 2x + 3 = 0 |
Решите тригонометрические уравнения: 1. 2sin2 x + 3sin x – 5 = 0 2. 10sin2 x – 17cos x – 16 = 0 3. 5sin2 x + 13sin x cos x + 6cos2 x = 0 4. 3 tg x – 14ctg x + 1 = 0 5. 10sin2 x + 13sin 2x + 8 = 0 6. 6cos2 x + cos 2x = 1 + 2sin 2x | Решите тригонометрические уравнения: 1. 10cos2 x + 11cos x – 8 = 0 2. 4cos2 x – 11sin x – 11 = 0 3. 3sin2 x + 8sin x cos x + 4cos2 x = 0 4. 5 tg x – 12ctg x + 11 = 0 5. 5sin 2x + 22sin2 x = 16 6. 2sin2 x – 10cos 2x = 9sin 2x + 10 | Решите тригонометрические уравнения: 1. 4sin2 x + 11sin x + 7 = 0 2. 8sin2 x – 14cos x + 1 = 0 3. 2sin2 x + 9sin x cos x + 9cos2 x = 0 4. 6 tg x – 2ctg x + 11 = 0 5. 8sin2 x – 7 = 3sin 2x 6. 11sin 2x = 11 – cos 2x |
Решите тригонометрические уравнения: 1. 2cos2 x + 3cos x – 5 = 0 2. 6cos2 x – 11sin x – 10 = 0 3. sin2 x + 7sin x cos x + 12cos2 x = 0 4. 7 tg x – 8ctg x + 10 = 0 5. 9cos2 x – sin2 x= 4sin 2x 6. 7sin 2x + 3cos 2x + 7 = 0 | Решите тригонометрические уравнения: 1. 10sin2 x + 17sin x + 6 = 0 2. 3sin2 x + 7cos x – 7 = 0 3. 3sin2 x + 11sin x cos x + 10cos2 x = 0 4. 5 tg x – 9ctg x + 12 = 0 5. 3sin2 x + 5sin 2x + 7cos2 x = 0 6. 12cos2 x + cos 2x = 5sin 2x + 1 | Решите тригонометрические уравнения: 1. 5cos2 x + 12cos x + 7 = 0 2. 10cos2 x + 17sin x – 16 = 0 3. 2sin2 x + 9sin x cos x + 4cos2 x = 0 4. 4 tg x – 6ctg x + 5 = 0 5. 8sin2 x + 3sin 2x = 14cos2 x 6. 2sin2 x – 7cos 2x = 6sin 2x + 7 |