Images 8 13 SIN A

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8 13 sin a. 13sin2x-3cos2x=-13. 5cos2 x – 12sin x – 12 = 0. Вариант 2 13-12sin^2x если cos^2x=0,11. 13sin2x-5sinx 13cos+12.
13sin2x-3cos2x=-13. 5cos2 x – 12sin x – 12 = 0. Вариант 2 13-12sin^2x если cos^2x=0,11. 13sin2x-5sinx 13cos+12.

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