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1 [email protected]
3.
1. (x,y). =
, xx :
2. ,
3. y ax b xx = .
xx . , xx
4.
2 2
2
2
1
11
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3.1
0 180
30 30
30 30 180 30 150
=, ""
3
2
1
2
2 2 0
2
2 1 0
3 2 3
(2
2)( 1) 0
2 1
22 2 4
0
5 452
3.2- 4 /9
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3.3
) 22x (4 2)x 2 2 0
) , 0 180 22 (4 2) 2 2 0
)
222 2
22
2
4 (4 2) 4 2 2 2 4 2 4 2 2 4 2 2 2
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1,2
4 2 4 2 2 2 2
4 4 24 2 4 2 4 2 4 2x
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24 4
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) ) , x .
12
x2
2x 2
, 0 180 0 1 2
2
452
3.4
, 0 180
2 23 0
2 21 , 2 2 1
2 2 2 2 2 2 23 0 3 1 0 3 1 0 4 1
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3
3(180 30 ) 150
2
3.5
) 1
3
) 2
:
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3.6
2x 5 6x , 0 180
x 2 ,
2x 6x 5 0
x 2 2( 2) 6 ( 2) 5 0 4 12 5 0 3 0 3
3 3 3
2 2 2 2 1 (3) 1
2 2 2 2 19 1 10 1 10
1
10
, =3, ,
1 10
1010
:
2
2 2 210 10 100 10 1 1 10 100 100
2 290 9 3 3 10
100 10 1010
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3.7 -3.
x 2 ,
) . ) 1 (1,-3)
) y ax
x 2 ,
-2. (-2,y) y 2( 3) 6
(-2,6)
y y2 y ( 2)( 3) 6
x 3
) 1 -2 (1,-3) y 2x b ( 3) 2 1 b b 2 3 b 1
1 y 2x 1
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3.8 / 1 6
.
13
56
.
13 1356 56 13
56
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4. -
)
: ( 244 )
4.1 /1 249
) x 4
30 45
x 4 2 42x
1 2 22 2
2
2 4 2 4 22x 2x 4 2 x 2 2
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45 120
120 . 3
120 (180 60 ) 602
x 15
2 3
2 2
x 15 2x 2 15
2 3 2 3
2 2
x
2x 2 15 2x 2 2 15 3 2 5 3 2 5 3 22x 2 5 3 x 5 6
2 3 22 3 2
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) ! .
x: o o o o180 75 45 60
o o
x 8 x 8 2x 2 8 2x 3 2 8 2
60 45 3 23 2 3 2
2 2
2 3 8 2 3 8 2 12 2 12 2 3x 8 2 x 4 6
3 32 3 2 3 3
3
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12 6 12 12
3 3
2
3 !!!
! !! 4.3
5cm, 45 , 10cm ;
, . , . !
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4.4/ 2 . 249
) 8 4 8 4 8
8 x 11x 30 x x2
ox 90
)5 5 3 5 5 3 5 5 3 5 10 3 5
10x 120 x (180 60 ) x x x3 3
2
110 x 5 x
2 ox 30 ox 150 ,
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4.5 / 3 249
) 2 2
30
2 2 2 2 2 2 22 2 2
1 1 22 22
. , 1 = 45 = 180 -30 -45 =105 2 =180 45 =135 = 15
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)2 3 2 3 2 2
260 23
2
1 = 45 = 180 -60 -45 =75 2 =135 ! 135 60 195 , . 1 . )
:
2 2 2
2 2 2
2 2 2
2
2
2
:
2 2 2
2 2 2
2
2
2 2 2
2
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12 [email protected]
1,2,3 247 , 4.6
4.7
-
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4.8
4.9/ 9 250
)
2
2 2
2
2
x 3 2 7 2 3 2 7 45
2x 9 2 49 42 2 18 49 42
2
x 25 x 5 x 5
)
2 2 22 2 2 2 2 2 2 2
2
2 2 25 3 7 25 9 49 15 1
x2 5 3 30 30 2
o o ox 180 60 120 : . . ) 2 )90
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4.10 / 2 3
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4.5 4.11 120 , 60 120
2 2
2 2 2
2
1ZH ZO OH 2 ZO OH120 3 3 2 3 3
2
2ZH 3 3
2
2
3 9 ZH 3
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