CO 2k)(x-2k – in 2, 1 S (-1)^+ (*.*. a - 1 2 ) 22k(k)”2k |a = 1 AD (6480.2)a * (2k)|ac-2k 2. arccosh a = ln 2a: – XC (*). |a = 1 AD (6480.3)a :- 22k(k)^2}.
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