7 2001 .
1. tg 1 , .
2. tg , tg , .
3. , , , .
. "-75" . . , :
, , .
, .
4. , 24 -75, = vcos. : , , , .
.. , :
, , .
19 -75, (tg - tg ) ( - ). <1,0', v< 18 <18,0'. (.) <1. (tg - tg ). .. 23,5, tg <0,44. , .
(.), 19 , 0,1'-0,2', .
, . .
, .. .
.
.
.
.
.
. , , , . N , . 2001 . = 3845' = 8916'. , = 90 - < 1 = 44'. .
. . - . (44'), PNCD .
x = cost
, = ho - x (*)
, x = os(S - ).
(*) , = ho - os(S - )
I = - o os(S - o) (**)
o o - .
|
|
= ho + I + II + III (4.8)
I , (**) " " 277-278.
II PNCD I, , " " 279 S h.
III I " " 280 S .
, , , I, II III.