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>> 10 . |
18. ,, , , , - . , < 12 x = 5 (5 < 12 ) x = 15 (15 < 12 ). .
(x) I, , . I, () . (). . , . . , . , () = ( < 0) ; (, ) = (2 + 2 = 1) . , , , . , 2 - 3 + 2 = 0 () = (2 - 3 + 2 = 0). . () (). () & (),
2, P(z) = (2 > 5) & (z - 2 < 15) . , P(z),
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