()
- . ( ӻ)
:
9
.
1
. , . , . .
1 | 2 | ||
1 | |||
2 | |||
2
I , .
II - .
I
- x1, x2.
. , . 1 2, .
L(x): 1 2 ( ):
L(x) = 39*x1 + 29*x2 max
x1 x2 :
1 2:
1 : 29*x1 + 59*x2 <=109
2 : 69*x1 + 39*x2<=129
x1>=0 x2>=0
1 2:
1 : 29*x1+59*x2=109
x1=0: 29*0 +59*x2=109 x2=109/59=1,85 [0;1,85]
x2=0: 29*x1+59*0=109 x1=109/29=3,76 B[3,76;0]
2 : 69*x1+39*x2=129
x1=0: 69*0+39*x2=129 x2=129/39=3,3 [0;3,3]
x2=0: 69*x1+39*0=129 x1=129/69=1,86 D [1,86:0]
x1 x2, 1 2
1. 1
[0;0]
2-
D 1 2
D x1 x2
( ) 1 2 x1 x2. :
|
|
29*x1 + 59*x2=109
69*x1 + 39*x2=129
1, 2
1=(109-59*2)/29
69*(109-59*2/29)+392=129
2=9/7=1,28
1
1=(109-59*1,28)/29
1=1,14
[1,14;1,28]
:
1=1,14 2=1,28
:
Lmax(x)= 39*x1 + 29*x2= 39*1,14 + 29*1,28=44,46 + 37,12=81,58
II
1 - y1, 2 y2
. , . 1 2, .
L(Y): 1 2 ( ):
L(Y)= 109*y1 + 129*y2 min
, , , 1 2. , . . y1 y2, :
1 2:
1- 29* y1 + 69* y2 >=39
2- 59* y1 + 39* y2 >=29
:
y1 >=0 y2 >=0
1 2:
1- : 29* y1 + 69* y2 = 39
y1 =0; 29*0 +69* y2 = 39 y2 = 39/69=0,56 [0;0,56]
y2 =0; 29* y1 +69*0 = 39 y1 =39/29=1,34 B[1,34;0]
2- : 59* y1 + 39* y2 = 29
y1 =0; 59*0 +39* y2 = 29 y2 = 29/39=0,74 C[0;0,74]
y2 =0; 59* y1 +39*0 = 29 y1 =29/59=0,49 D[0,49;0]
1 2 y1 y2, 1 2:
[0;+∞] [+∞;0] E F
G.
2. 2
EABF ECDF 1 2 .
ECGBF 1 2 y1 y2
G ( ) y1 y2 1 2. , :
29*y1+69*y2=39
59*y1+39*y2=29
y2 y1
y2=(39 - 29*y1)/69
y2:
59*y1+39*(39-29*y1)/69 =29
y1 =0,16
y2:
y2=(39-29*0,16)/69=0,49
G [0,16;0,49]
1 2
y1=0,16 y2=0,49
1 2:
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Lmin(Y)= 109*y1 + 129*y2= 109*0,16 + 129*0,49=17,44 + 63,21=80,65
:
I OAED 1, 1,14 1,28 , 81,58 .
II ECGBF 2, 0,16 0,49 , 80,65 .
2
. , . , . .
1 | 2 | ||
1 | |||
2 | |||
2
I , .
II - .
I
- x1, x2.
. , . 1 2, .
L(x): 1 2 ( ):
L(x)=39*x1 +209*x2 max
1 2 :
1 2:
1- : 79*x1+109*x2 <=709
2- : 39*x1+49*x2 <=149
:
x1>=0 x2>=0
1 2:
1- :
79*x1 + 109*x2 = 709
x1=0: 79*0 + 109*x2 = 709 x2=709/109 = 6,5 [0;6,5]
x2=0: 79*x1+ 109*0 = 709 x1=709/79 = 8,97 [8,97;0]
2- :
39*x1 + 49*x2=129
x1=0: 39*0 + 49*x2 = 129 x2=129/49 = 2,63 C [0;2,63]
x2=0: 39*x1+ 49*0 = 129 x1=129/39 = 3,3 D [3,3;0]
x1 x2, 1 2
[0;0]
D 1 2
CD x1 x2
C ( ) 1 2 x1 x2
3. 3
x1 =0 x2 =2,63
Lmax(x)= 39*0 + 209*2,63 =549,67
II
1 - y1, 2 y2
. , . 1 2, .
L(Y): 1 2 ( ):
L(Y)= 709*y1+ 129*y2 min
, , , 1 2. , . . y1 y2, :
|
|
1 2:
1- 79* y1 + 39* y2 >=39
2- 109* y1 + 49* y2 >=209
:
y1 >=0 y2 >=0
1 2:
1- :
79*y1 + 39*y2 = 39
y1 =0; 79*0 +39* y2 = 39 y2 = 39/39=1 [0;1]
y2 =0; 79* y1 +39*0 = 39 y1 =39/79=0,49 B[0,49;0]
2- : 109* y1 + 49* y2 = 209
y1 =0; 109*0 +49* y2 = 209 y2 = 209/49=4,26 C[0;4,26]
y2 =0; 109* y1 +49*0 = 209 y1 =209/109=1,91 D[1,91;0]
1 2 y1 y2, 1 2:
[0;+∞] [+∞;0] E F
4. 4
EABF ECDF 1 2 .
ECDF 1 2
Y1 y2.
( )
y1 y2 1 2.
1 2
y1=0 y2=4,26
1 2:
Lmin(Y)= 709*y1+129*y2= 709*0 + 129*4,26=549,54
:
I OD 3, 0 2,63 , 549,67 .
II ECDF 4, 0 4,26 , 549,54 .
5
P=1200-Q, Q , P- . TC=50Q. ? ? , ? .
TR:
TR=P*Q =(1200-Q)*Q=1200*Q Q2
MR: MR =(TR)'= (1200*Q-Q2)=1200-2*Q
MC: MC=TC =(50*Q)=50
:
MR=MC: 1200-2*Q=50; 2*Q=1150; Q=575
Q = 575
=1200 575 = 625
TR = 625*575=359 375
T = 50*575=28 750
= TR TC = 359 375 28 750 = 330 625
:
P(Q):
Q= 0; P =1200 0= 1200, [0;1200]
Q =1200; P =1200- 1200 = 0, [1200;0]
MR(Q):
Q=0; MR= 1200 2*0 = 1200, [0;1200]
Q=600; MR= 1200 2*600 = 0, D [600;0]
5.
P= 625; Q=575; =50:
E[0;50] F[0;625] G[575;625] H[575;50] I [575;0] O [0;0]
6.
S OFGI = TR = 359 375
S OEHI = TC = 28 750
S EFGH = = 30 625
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: 625 . 575 . TR 359 375 , = 28750 , = 330 625 .
6
P=1200-Q, Q , P- . i TCi=50qi. , , , , .
i- MCi:
MCi = (TCi) = (50qi) = 50
, = 50 .
Q = 1200 50 = 1150 .
:
qi = 1150/N , N .
:
i = TRi - TCi = P*qi TCi = 50* qi 50* qi = 0
:
= ∑i =∑ 0 = 0
:
P(Q):
Q = 0; P = 1200 0 = 1200, [0;1200]
Q = 1200; P = 1200 1200 = 0, [1200;0]
7.
MCi = 50: C [1150;50]
: , , = 50 . Q - 1150 , qi 1150/N, 0 0 .