1. :
(10) (1) :
...": ": .1
: –
.
.
–
–
.
: " .2
F ˆ ˏ F ......
: " .3

2. ( + )
: " .4
: F F F ...... .5
: ". .6

3. : "... .7
.8
: F F F
( F )
: ( )" ": .9

4. ( + )
" ": .10
: F
: (30 ) (19) :
.11
.
" : " .12
. : .13
": .14
"
F F F F F
F F F F F F F ( ,
, F( F )
. .15

5. .16
( ) .17
.18
" " .19
.20