1. 3 .
(. 141 . 8586 ). , 3 .
2. 286, 289, 290 (), 291 (), 292, 293 . 293 . 8889.
III. ( ) (2025 ).
I
1. .
2. PQ P 1 Q 1 hk. D , = PQ, = hk, F = P 1 Q 1, F .
II
1. , .
2. PQ P 1 Q 1 P 2 Q 2. KF , F = PQ, KF = P 1 Q 1 FD = P 2 Q 2, FD .
IV. .
: 3738; 1420 . 90; 273, 287, 288, 291 (, , ).
60
.
: , .
I. .
II. .
1. 301, 302, 308, 310, 314 (, ), 315 (, , ), 318.
2. .
PQ hk.
1) , , PQ.
2) D, , D, hk.
3) , , . .
()
, Q D hk. , .
: , hk . , .
III. .
: , 3438; 307, 314 (), 315 ().
61
5 ʻ
: ; , .
I. .