Photos А1 А2 В1 В2

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А1 а2 в1 в2. 2-5/6. (A-6)2 +4(A-6) 4. (A+1)(A+2)(A+4)(A+5)(A+6). -4,5-2,5.
2-5/6. (A-6)2 +4(A-6) 4. (A+1)(A+2)(A+4)(A+5)(A+6). -4,5-2,5.

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