X Y \uf03d \uf02d \uf02d 2f(x) 2 x \uf03d \uf02d 2f(x) 2 x \uf03d \uf02d2f(x) x 2 \uf03d \uf02d \uf02d 2f(x) 4 x \uf03d \uf02d 2f(x) 4 x 1 2 ² mm F G d \uf03d
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