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X2 y2 3 x y a. Верно ли равенство 1•2+2•3. (X2+y2)=-16x2y2. A2-b2. Y=1/2x2.
Верно ли равенство 1•2+2•3. (X2+y2)=-16x2y2. A2-b2. Y=1/2x2.

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