18: :
V- - ; n - .
-31 46 :
| a | b | c | d | f |
1-3. 1, 2, 3 : .., .., - .. Microsoft l : . : "", 2010. 95 .(.419).
4: y , : a=16; b=-6; c=25,34; k=5; d=8,1234; p=2,45×102; x .
| 1 | 
| c<x<p; c>x; . |
: 1
: 3 , 50% ; 3 5 60%; 5 8 80%, 8 100% . : 0, 2½, 3, 4½, 5, 7, 8 9 ; 30000 40000 . .
6: :
| ʳ | ||||||
| "5" | "4" | "3" | "3" | |||
| -17 | * | * | ||||
| -12 | * | * | ||||
| -13 | * | * | ||||
| -14 | * | * | ||||
| * |
7: : 20. , 
. A . , A . 䒺 , 䒺 . .
8: : 2.5. : ) ; ) :
| x1 | -x2 | -2x3 | =3 |
| 3x1 | +x2 | -x3 | =1 | |
| 4x1 | -x2 | +3x3 | =6 |
: .. . " " 9 ( .100). 401
18: ':
³- - ; - - ; n - .
-31 47 :
| a | b | c | d | f |
1-3. 1, 2, 3 : .., .., - .. Microsoft l : . : "", 2010. 95 .(.419).
|
|
|
4: y , : a=16; b=-6; c=25,34; k=5; d=8,1234; p=2,45×102; x .
| 2 | 
| c<x<p; c>x; . |
: 2
쳿 , 㳿, : 10 . . ., 쳿 25% 2 . . .; 10 20 . . . 20% 3,4 . . .; 20 50 . . . 17% 6 . . . : 2 ., 9 ., 10 ., 18 ., 20 ., 40 ., 50 . 95 . . .
6: :
| ʳ | ||||||
| "5" | "4" | "3" | "3" | |||
| -11 | * | * | ||||
| -12 | * | * | ||||
| -13 | * | * | ||||
| -14 | * | * | ||||
| * |
7: : 19. , 
. C 䒺 , 䒺 . 䒺 , 5, 6. , C. .
8: : 2.4. : ) ; ) :
|
| x1 | +x2 | -4x3 | =-1 |
| 2x1 | -x2 | +3x3 | =6 | |
| x1 | +2x2 | -x3 | =3 |
