A
0
, B , C , D , D , E , F
0 0 0 1 0 0
A
0
B
0
C
0
D
0
D
1
E
0
F
0
AB + AF = 800
AB BC + BE = 400
BC CD = 600
CD + DE = 1200
DE BE EF = 400
EF + AF = 600
AB 2EF = 0
DE 1.5BC = 0
n Oxy
(x
1
, y
1
) ( (, x
2
, y
2
) , ..., x
n
, y
n
).
x
i
n 1
n
n 1
p
(x x) = a
0
+ a
1
x + a
2
2
+ ... .+ a
n1
x
n1
n x
i
, y
i
a
i
2
p(x) = a
0
+ +a
1
x a
2
x
2
(1 4) (2 0), , , (3 12),
a
0
= 24, a , a
1
= 28
2
= 8
4 (2 3) 5) (0 1) (1 4), , (1, , , , , (2 10),
x
1
+ x
2
= 25
t
x
5
t = 20
0
I
1
, I , I
2 3
I I
1
+
3
= I
2
.
I
1
, I , I , I , I , I
2 3 4 5 6

Preview text:

A0, B0, C0, D0, D1, E0, F0 A0 B0 C0 D0 D1 E0 F0 AB + AF = 800     AB  − BC + B E = 400   BC  − C D = 600    −CD + DE = 1200 DE  − BE − E F = 400    E F + AF = 600    AB  − 2E F = 0    DE − 1.5BC = 0 n Oxy
(x1, y1), (x2, y2) , ..., (xn, yn). x n i − 1 n n − 1 p(x) = a 2 1 0 + a1x + a2x + ... + an 1xn− . − n xi, yi ai 2 p(x) = a0 + a1x + a2x2 (1, 4), (2, 0) (3, 12) a0 = 24, a1 = , a −28 2 = 8 4
(−2, 3), (−1, 5), (0, 1), (1, 4) (2, 10) x1 + x2 = 25 t x5 t = 20 0 I1, I2, I3 I1 + I3 = I2. I1, I2, I3, I4, I5, I6