Photos 2X 5 2 РЕШИТЕ

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2x 5 2 решите. 2cos^2x+5sinx-4=0. Cos2x+5sinx+2=0. Cos2x=0.5. Решите уравнение 2cos^2x-5sinx-4=0.
2cos^2x+5sinx-4=0. Cos2x+5sinx+2=0. Cos2x=0.5. Решите уравнение 2cos^2x-5sinx-4=0.

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