200 115,4701
3 »
Bài
2 2 6 3
x
x- +x
(1 + x 7) (1 + ax ) 1 10 + x bx + 2+
5 7 0,5586; 70 5 7 41,6144
24,21 2,42 3,85 30,24 2,31 31,49 1,52 40,95 3,49 4,85 28,72 42,81
ì
í
ỵ
3 1 0,3660
2- »
Trang 21 4
194; 398 10,9263
6200 2,4183; 2 200 4,8366;6 3 200 7,25486
2
2 3
y x
- +
= +
í = - í =
Trang 32 2
1
9 4
x + y =
1,5324 2,7257 1,7194 0,8354
2, 0, 17
a= b= c=
-2 2
ï
ïî
3
2,4142
3,4495 1,4495 0,4142 2,4142
x
»