Mathematics, 23.07.2021 06:30 ally7366

(1 sen y)2/(1-sen 2 y) -(1-sen y)/(1+sen y)= (1+2 sen y +sen2 y)/(cos2 y)-((1 sen y1-sen y)

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(1 sen y)2/(1-sen 2 y) -(1-sen y)/(1+sen y)= (1+2 sen y +sen2 y)/(cos2 y)-((1 sen y1-sen y)...

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