2.1. . Ȼ
1. :
) ;
) ;
) 222222222;
) 9;
) , 0 ½;
) , 2 , 5 .
2. . : , , , ?
3. = {70, 106, 223, 304}. , :
) ;
) ;
) 7;
) 7.
4. :
) ;
) ;
) ;
) .
5. 40 . 19 , 17 22 . , 4 11 . . . ? ? ( )
6. , , , , , :
) - ;
) , 30;
) 505;
)
( 2) ( + 11) ( 12) ( + 13) ( 14) = 0;
) , -4,5 < x < 5,5;
) , |x| < 6;
) x > 15;
) x < 12;
) , 3;
) , 5;
) , 30;
) , 3.
7. n(A), :
) A = {0, 2, 5, 7, 17, 25};
) 28;
) ;
) .
8. 2347. , :
= 32; = 47; = 43443; = 27433; = 43572?
9. . , :
) 9;
) .
10. , , X Y :
|
|
) X = {62; 31; 74; 7; 17; 20}
Y = {4; 5; 17; 8; 62; 3; 7}
) X = {31, 19, 14}
Y = {3; 19; 2; 21; 31; 17; 14}
) X = {16; 14; 7; 35}
Y = {10; 8; 53; 41}.
2.2. .
1. , (-1; 0), (-1; 4), (3; 0), (3; 4)?
2. , , .
3. , [-2; 2], - [-3; 3]?
4. , = {0, 2, 4, 6}, B = {1, 3, 5}. (2; 3), (3; 0)?
5. , ?
6. × ,
1) = [-2; 2], B = {2, 3, 4};
2) A = [-2; 2], B = [2; 4];
3) A = R, B = [2; 4].
7. , = {3, 2, 1} B = {4, 4, 6} .
8. M, P K,
M = {f, p, k}; P = {m, s}; K = {c; r; h}.
2.3. . ɻ
1. , :
) ;
) ;
) ;
) .
2. X = {0, 3, 6, 9, 12, 15, 18} , (; ) :
) 3 ;
) 3;
)
.
3. A = {0, 3, 6, 9, 12}:
) P = {(6, 3), (9, 3), (12, 3), (12, 6), (3, 3), (6, 6), (9, 9), (12, 12)};
) T = {(3, 3), (3, 6), (3, 9), (3, 12), (6, 6), (9, 9), (12, 12)};
) M = {(3, 6), (6, 12), (9, 18)}?
4. = {0, 2, 4, 6, 8} P, Q, S. , :
P ;
Q ;
S 2.
5. , : , , . . : 1) ; 2) ; 3) .
6. - = {3, 6, 9, 18, 27}.
7. :
1) 5;
2) 7;
3) 5 ;
4) 5 .
8. :
1) ; 2) .
9. , {0, 1, 2, 3, 4}. ?
|
|
2.4. ɻ
1. = {1, 2, 4, 8, 12} . .
2. , (. . 1), ? ?
3. , = {0, 2, 4}?
4. = {2, 3, 4, 5, 6} . . ?.
5. 2 2, Y = {2, 4, 6, 8, 12}? ?
6. R, , , a b b c, , a c, . ? ?
7. . : 1) ; 2) ; 3) ?
8. = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} 4. ? , .
9. , , .
10. = {213, 37, 21, 87, 82} . ?
11. {1, 2, 4, 6, 7, 8, 10, 11}. , , .
12. 0 999 . , . ? .
13. ? .
14. . : 1) ; 2) ; 3) 2; 4) 3 . ? .
15. ? ?
16. , R . ?
2.5. .
1. . , . .
2. : = {-1, 1, -2, 2, -3, 3, -4, 4} N . R m n, m M, n N.
3. ={1, 2, 4, 6} B = {5, 7}. . 1 ?
4. X = {2, 5} Y = {3, 6}. . : 1) ; 2) ; 3) ?
|
|
5. = {(1, 1), (3, 0), (3, 1), (4, 0), (4, 1), (6, 1)} X = {1, 3, 4, 6} Y = {0, 1}. -1, , -1.
5. = {0, 2, 4, 6, 8, 10} 2. -1 .
6. = {k, l, m, n, p} Y = {1, 2, 3, 4, 5}. . Y?
7. = {1, 2, 5} B = {3, 7}. . - ?
8. N - , Y . , N Y .
.
1. .., .. . ., - , 1999.
2. .. . ., , 2001.
3. .., .. . . ., , 2002.
4. .. . ., , 1994.
5. .. . ., , 2000.
6. .. . ., , 1997.
7. .., .. . ., , 1998.
8. . ., . . . . ., -, 2004.
9. . . . . ., , 2011
10. .. . ., , 2011.
11. .. ( ) --, , 2008.