Images TG 2A

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Tg 2a. Tg2a ctg2a. Tg²a +ctg²a , если TGA -ctga= -2. CTG^2 A/2. 2 TGA ctga/TGA+ctga.
Tg2a ctg2a. Tg²a +ctg²a , если TGA -ctga= -2. CTG^2 A/2. 2 TGA ctga/TGA+ctga.

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