Photos А1 2

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А1 2. 1+2a-1/a2-2a+1-a/a-1. 1/2+1/2. (4а/а^2-3а+2 +2/а^2-1):2а+4/а^2-а-2 - а/а-1. 1+2 +2 +2 =2-1.
1+2a-1/a2-2a+1-a/a-1. 1/2+1/2. (4а/а^2-3а+2 +2/а^2-1):2а+4/а^2-а-2 - а/а-1. 1+2 +2 +2 =2-1.

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