4sin2x – 11cos x – 11 = 0 4sin2x + 9sin x cos x + 2cos2x = 0 3 tg x – 8ctg x + 10 =...

Question

4sin2x – 11cos x – 11 = 0

4sin2x + 9sin x cos x + 2cos2x = 0

3 tg x – 8ctg x + 10 = 0

3sin 2x + 8sin2x = 7

Comments

К степени

Answer 1

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