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https://www.youtube.com/watch?v=at-NZ2uWt-o&feature=emb_logo
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:
(7 ):
2
2,5% 160
55
80
10
10
1/2 .
⠀
:
0,5% 260
1
25
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1. : , , , , - , - . ( , - )
2. , ( )
3. ( ) .
4. !
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- |
= 1 .
(15 x 20 ) = 2 .
= 2 .
= 12 .
= 1 .
:
1 . .
( ) , . 200 ° 20 . , .
!!
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