Photos А1 А2 В1 В2

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А1 а2 в1 в2. 1+1+1=3. 2.3.3. 2а+3<5 1-б<2б+3. (3a+2б)^2-(а+б)^2.
1+1+1=3. 2.3.3. 2а+3<5 1-б<2б+3. (3a+2б)^2-(а+б)^2.

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