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1.n 3n 1.m A-B m A mmm B A-B = {1,2,3,4,5}
5 n 1 nmn 2 B-A m B mmm A n 6,7,8,g.
B n B-A = {{1,2},{3,4,5}} 2
q B-A m 22 = 4 mn 2 n
n 3. (A-B) (B-A) = {1,2,3,4,5,{1,2},{3,4,5}} 7
mmm n 3 m n n n mn
4 m AB = {6,7,8,g} m 5 n 4
2.n 3qn 1 1
: : nmm 3 nm
m m n m
n nnn mn n 3
3.n 1mn 2
--- mn () m 0.33333g. , 0.535353g
--- mnmm m m = 3.14159gm m
n . mmn
nm mn .
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mn n .
mnm n 1 n . .
4.n 3 n s < t u < v -1 nm xt < -s xv < -u
s < t xv < -u n s-v < t-u nn . mn .
mn mm n s=10, t=20 u=9, v=100
nm s-u = 10-9 = 1 t-v = 20-100 = -80 nm s-u > t-v
5.n 4 |a| = a xan
= 4.5 5.5 m m (-3,6) n4
6.n 11 n n m nm
q n q 3 n n q 2n
2 a b n
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mnm n
mmm qn
n
n 4nn 1 n nm n m
7.n 2
n 2
8.n 1 ,
n
9.n 1 mqn a (a>0) m
n. .
*** : nqmnm a mnmm mmm a
a
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>> n m m m . |a| m m
>> m amm |a| . m . m a mmm |a| .
10. n 1 (parabola)nq
nnm ()nmn 2 ,3 4 mm 1 m
mn
nm 1 n 11. n 4 mq nm nn ( )
nm (y) nmm n 1 (2,3) (2,4)
mmq mn 2 (3,1) (3,3) mmq n 3
-2
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390) 0 1 2 3 4 4 5 0 1 6 5 7 8 ) 10200 Te 9 ) 08@ 4725@ 8840,0@
2224@ 2141EmA ilB
punnong.schoolC gmA
il.com
600 .. m m
D
. n n
. nnm 50 .
nnm 30+40+50 =120 .
15. n 3q n m x
mmmm y
qm
50 ( ) nm
(ny) n
mq nm m N m xy
n
16. n 4 n AB mn DC
nm
m n
n n n nm
x
0.75x
. . .
. . .
. . .
. . .
. . .
.
.
.
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.
.
.
.
.
.
.
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.
.
.
.
.
.
.
.
.
.
x X
m
A
B
E 2E
E
CD
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m nn
17. n 2mnn mm g
mn n m 7
nm m mn 0.961 m n
( ) nmmn
18. n 3nnm (m
nm)nmnn n
qnnm
19. n 2
7
24
25
m F n G n
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n nn
n 1.46
20. n 3
n m
21. n 2
q 40
qm m q 40 n qm n n
q 40 mm 2 40
22. n 3
n
nm
10 q
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23. n 2
H (S) =
1 2 3 = 2 2 2 =
8
m 3 m 2
24. n 2
y
1 10
9
2 2 10 x 9 = 90 = n(S)
y 5 4 1,2,3 45 6 5,6,7,8,9 10
y 1 5 5
4 x 6 = 24y 2 5
5 6 x 4 = 24
y 24+24 = 48 48/90 = 8/15
25. n 2
1
2
n
3
n
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S
T S
26. n 4
y 10 33 ( 10
)
10 9 8 10x9x8 = 720
y
6 ()
5
( 5)
4+4 = 8 ( 4
4)
6x5x8
= 240 240/720 = 1/3
27. n 3
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28. n 1
=
=
29. n 4
57, 58, 67, 68,69, 70, 74, 74, 77,81
74
1
= 695/10 = 69.5 (69+70)/2 = 69.5 2
70 5 3
(74) 2
2 4
30. n 4
31. n 1
41, 88, 46, 42, 43, 49, 44, 45, 43, 95, 47, 48
88, 95
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32. n 2
= 10 = 24 1 = 12 2 = 16 3 = 18
25 2 12-18
18-24
33. n 4
3 75%
400 300 60
60% 400
240 360 300-240 = 60
34. n 1
= 1 + 1
= ()
q2-6 7 7 7/20=0.35
7-11 0.2x20 = 4 11 0.2
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12-16 3 14 3/20=0.15
17-21 6 14+6 = 20 0.3
17-21
7-11 0.2x20 = 4
2-6 7
35. n 3
. . 2550
. 2551
2550 2551
. 2551 =
. 36. n 4
4
37. 101
n M mq
S m
T m
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q q
1 19+28+30+10+5+2+7 = 10138. 390 n
12, 14, 16,
n=15()
( )
39. 280
=
MS
T
5
2
10
7
36-10-5-
2 =19
44-2-5-7
=30
50-10-
5-7 =28
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10 x 10 x 10 = 900
10 x 9 x 8 = 720
900-720 = 280
40. 240 1. 5
2. 4 4x3x2x1 = 24
3. 2
5x24x2 = 240
