Решить уравнения: 1) sin 2 x + sin x – 2 = 0.

2) 2 cos 2 x – 5 cos x + 2 = 0.

3) 2sin 2 x – cos x – 1 = 0.

4) 2 cos 2 x – 5 sin x + 1 = 0

5) 3 tg 2x – tg x – 2 = 0

6) tg x – 2 ctg x + 1 = 0.

Question

Алгебра: Решить уравнения: 1) sin 2 x + sin x – 2 = 0. 2) 2 cos 2 x – 5 cos x + 2 = 0. 3) 2sin 2 x – cos x – 1 = 0. 4) 2 cos 2 x – 5 sin x + 1 = 0 5) 3 tg 2x – tg x – 2 = 0 6) tg x – 2 ctg x + 1 = 0.

alinakiseleva12 · Answer

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