10 ZANIMLJIVIH ZADATAKA O BROJU 2014.pdf

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    10 2014

    a , b , c , . . . , m , n , k

    a+b+c+. . .+m+n+k = abc . . . mnk= 2014 . 2014 = 2 19 53,

    2 + 19 + 53 + 1 + 1 + . . .+ 1 + 1 = 2 19 53 1 . . . 1 1 . 1 1940

    20142014 + 2014 916370 0 . 916370 = 2 5 7 13 19 53

    20142014

    + 2014 = 2014 (20142013

    + 1)

    2014 = 2 19 53 20142014 + 2014 2 19 53

    20142013 + 1 5 (1)2013 + 1 50, 20142014 + 2014 5

    20142013 + 1 13 (1)2013 + 1 130, 20142014 +2014 13 2014 7

    2 (

    2)3

    7

    1

    20142013 + 1 7(2)2013 + 1 7(2)3671 + 1 7(1)671 + 1 70, 20142014 + 2014 7 20142014 +2014 2 5 7 13 19 53 = 916370 .

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    17

    4

    28 48 2014

    a b a b 0

    a, ab, b, 1

    a,

    1

    ab,

    1

    b, a , a b , b , . . .

    6 6

    a ab b 1a 1

    ab1

    b =

    a2b2

    a2b2 = 1.

    6 1

    17 4 17 = 2 6 + 5

    a ab b 1a 1

    ab=

    a2b2

    a2b =b = 4 .

    28 48 28 = 4 6+4

    a ab b 1a

    =a2b2

    a =ab2 = 48 , b= 4,

    16a= 48, a= 3 .

    2014 = 6 335 + 4, 2014

    a ab b 1a

    =ab2 = 3 42 = 48.

    z 1, z2013 z2014

    |z| = 1. |z2013| =|z|2013 = 1 |z2014| =|z|2014 = 1, z2013 z2014

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    z z2013 =1 z2014 =1,

    1, z2013

    z2014

    ,

    z2014

    z= 12

    +i3

    2 .

    |z| =1

    2

    2+3

    2

    2= 1 ; z3 = 1, z2013 = (z3)671 = (1)671 = 1

    z2014 =z2013 z =z =12 i

    3

    2 =1, z = 1

    2+i

    3

    2

    .

    2014

    n p1, p2, . . . , pk n p1 1 p2 2 pk k

    n= p11p2

    2 . . . pkk .

    n

    N(n) = (1+ 1)(2+ 1) . . . (k+ 1) .

    2014 = 2

    19

    53, 2014 :

    1. 2014 = 1 2014,2. 2014 = 2 1007,3. 2014 = 19 106,4. 2014 = 38 53,5. 2014 = 2 19 53.

    2014

    1. n1= 22013,

    2. n2= 21006 3,3. n3= 2

    105 318,4. n4= 2

    52 337,5. n5= 2

    52 318 5 .

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    n5

    2014

    252 318 5 .

    11 . . . 1 2014

    22 . . . 2 2014

    11 . . . 1 2014

    22 . . . 2 2014

    = 11 . . . 1 2014

    102014 + 2 11 . . . 1 2014

    =

    = 102014 1

    9 102014 + 2 10

    2014 19

    =(102014 1)(102014 + 2)

    9 =

    = 102014 1

    3 10

    2014 + 2

    3 = 33 . . . 3

    2014

    33 . . . 3 2014

    4 .

    k

    2013k | (201220132014 + 201420132012)

    a= 2013 k

    ak

    |((a

    1)a

    a+1

    + (a+ 1)aa1

    ) .

    a

    (a 1)aa+1 1 a.(a+ 1)a

    a1

    1 a. a (a 1)aa+1 + 1

    (a+ 1)aa1 1

    k n N Sn tn

    (1 +a)an

    = 1 +Sn an+1 aSn . . . ()

    (a 1)an = 1 +tn an+1 atn . . . ()

    n= 1 : (1 +a)a = 1 +

    a

    1

    a+

    a

    2

    a2 + +

    a

    a

    aa =

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    = 1 +a21 + a2+ a3a+. . .= 1 +S1 a2 . a a|a

    2

    aS1 S1= 1 +

    a

    2

    +a

    3

    a+. . . .

    n

    (a+ 1)an+1

    = (1 +Sn an+1)a = 1 +

    a

    1

    Sna

    n+1 +

    a

    2

    Sn

    2a2n+2 +. . . =

    = 1 +an+2

    Sn+

    a

    2

    Sn

    2an +. . .

    = 1 +Sn+1an+2

    aSn aSn+1. () () aa a

    (a+ 1)aa1 1 (n= a 1 ()) aa+2 a

    (a 1)aa+1 + 1 (n= a+ 1 ()) k(=a) = 2013 .

    x n

    x2n 4 = 3 (4 + 42 + + 42013) .

    3 (4 + 42 + + 42013) =

    = (1 + 4)(4 + 42 + + 42013) == 4 + 42 42 + 43 43 + 44 42013 + 42014 = 42014 4 ,

    x2n4 = 420144 , x2n = 42014 . x2n (22)2014 = 0, (xn)2 (22014)2 = 0,

    (xn 22014)(xn + 22014) = 0, xn = 22014 = 221953 .

    x= 2, n= 2014x= 22, n= 19 53 = 1007x= 219, n= 2 53 = 106x= 253, n= 2

    19 = 38

    x= 238, n= 53x= 2106, n= 19x= 21007, n= 2x= 22014, n= 1 .

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    (x, y)

    (x+y+ 2014)2 =x2 +y2 + 20142 .

    x2 +y2 + 20142 + 2xy+ 2x 2014 + 2y 2014 =x2 +y2 + 20142

    xy+ 2014x+ 2014y= 0 (x+ 2014)(y+ 2014) = 20142 .

    20142 = 22 192 532 20142 3 3 3 = 27 2 27 = 54

    54

    x+ 2014 = 1, y+ 2014 = 20142 (x, y) = (2013, 4054182) (x, y) = (2015,4058210)

    x+ 2014 = 2, y+ 2014 = 2 192 532 (x, y) = (2012, 2026084) (x, y) = (2016,2030112)

    x+ 2014 = 22, y+ 2014 = 192 532 (x, y) = (2010, 1012035) (x, y) = (2018,1016063)

    x+ 2014 =

    19, y+ 2014 =

    22

    19

    532

    (x, y) = (1995, 213484) (x, y) = (2033,215498)

    x+ 2014 = 2 19, y+ 2014 = 2 19 532 (x, y) = (1976, 104728) (x, y) = (2052,108756)

    x+ 2014 = 53, y+ 2014 = 22 192 53 (x, y) = (1961, 74518) (x, y) = (2067,78546)

    x+ 2014 = 22 19, y+ 2014 = 19 532 (x, y) = (1938, 51357) (x, y) = (2090,55385)

    x+ 2014 = 2 53, y+ 2014 = 2 192 53 (x, y) = (1908, 36252) (x, y) = (2120,40280)

    x+ 2014 = 22 53, y+ 2014 = 192 53 (x, y) = (1802, 17119) (x, y) = (2226,21147)

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    x+ 2014 = 192

    , y+ 2014 = 22

    532

    (x, y) = (1653, 9222) (x, y) = (2375,13250)

    x+ 2014 = 2 192, y+ 2014 = 2 532 (x, y) = (1292, 3604) (x, y) = (2736,7632)

    x+ 2014 = 19 53, y+ 2014 = 22 19 53 (x, y) = (1007, 2014) (x, y) = (3021,6042)

    x+ 2014 = 22 192, y+ 2014 = 532 (x, y) = (570, 795) (x, y) = (3458,4823)

    x+ 2014 = 2 19 53, y+ 2014 = 2 19 53 (x, y) = (0, 0) (x, y) = (4028,4028)

    x+ 2014 = 532, y+ 2014 = 22 192 (x, y) = (795,570) (x, y) = (4823,3458)

    x+ 2014 = 22 19 53, y+ 2014 = 2 19 53 (x, y) = (2014,1007) (x, y) = (6042,3021)

    x+ 2014 = 2 532, y+ 2014 = 2 192 (x, y) = (3604,

    1292) (x, y) = (

    7632,

    2736)

    x+ 2014 = 22 532, y+ 2014 = 192 (x, y) = (9222,1653) (x, y) = (13250,2375)

    x+ 2014 = 192 53, y+ 2014 = 22 53 (x, y) = (17119,1802) (x, y) = (21147,2226)

    x+ 2014 = 2 192 53, y+ 2014 = 2 53 (x, y) = (36252,1908) (x, y) = (40280,2120)

    x+ 2014 = 19

    532, y+ 2014 =

    22

    19

    (x, y) = (51357,1938) (x, y) = (55385,2090)

    x+ 2014 = 22 192 53, y+ 2014 = 53 (x, y) = (74518,1961) (x, y) = (78546,2067)

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    x+ 2014 = 2 19 532, y+ 2014 = 2 19 (x, y) = (104728,1976) (x, y) = (108756,2052)

    x+ 2014 = 22 19 532, y+ 2014 = 19 (x, y) = (213484,1995) (x, y) = (215498,2033)

    x+ 2014 = 192 532, y+ 2014 = 22 (x, y) = (1012035,2010) (x, y) = (1016063,2018)

    x+ 2014 = 2 192 532, y+ 2014 = 2 (x, y) = (2026084,2012) (x, y) = (2030112,2016)

    x+ 2014 = 22 192 532, y+ 2014 = 1 (x, y) = (4054182,2013) (x, y) = (4058210,2015)

    x2 y |z| = 20142 .

    2014 2014 = 2

    19

    53

    x 1, 1,2, 2,19, 19,53 53

    x =1 y |z| = 20142 = 22 192 532 20142 = 22 192 532 3 3 3 = 27 x =1 2 27 2 = 108 x z

    x= 1, y= 1, z = 22 192 532,x= 1, y= 2, z = 2 192 532,x= 1, y= 19, z= 22 19 532,x=

    1, y= 53, z=

    22

    192

    53,

    x= 1, y= 22, z = 192 532,x= 1, y= 2 19, z= 2 19 532,x= 1, y= 2 53, z= 2 192 53,x= 1, y= 192, z= 22 532,x= 1, y= 19 53, z= 22 19 53,

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    x= 1, y= 532, z= 22 192,x= 1, y= 2

    2

    19 z= 19 532

    ,x= 1, y= 22 53, z= 192 53,x= 1, y= 2 192, z= 2 532,x= 1, y= 2 532, z= 2 192,x= 1, y= 2 19 53, z = 2 19 53,x= 1, y= 192 53, z= 22 53,x= 1, y= 19 532, z= 22 19,x= 1, y= 22 192, z= 532,x= 1, y= 22 532, z= 192,x= 1, y= 22 19 53, z = 19 53,x= 1, y= 2 192 53, z = 2 53,

    x= 1, y= 2 19 532

    , z = 2 19,x= 1, y= 192 532, z= 22,x= 1, y= 22 192 53, z= 53,x= 1, y= 22 19 532, z= 19,x= 1, y= 2 192 532, z= 2,x= 1, y= 22 192 532, z= 1,

    x =2 y |z|= 192 532 192 532 3 3 = 9 x =2 2 9 2 = 36 x z

    x= 2, y= 1, z = 192 532,x= 2, y= 19, z= 19 532,x= 2, y= 53, z= 192 53,x= 2, y= 192, z= 532,x= 2, y= 19 53, z= 19 53,x= 2, y= 532, z= 192,x= 2, y= 192 53, z= 53,x= 2, y= 19 532, z= 19,x= 2, y= 192 532, z= 1,

    x =

    19 y

    |z

    |= 22

    532 22

    532 3

    3 = 9

    x =19 2 9 2 = 36 x z

    x= 19, y= 1, z= 22 532,

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    x= 19, y= 2, z= 2 532,x= 19, y= 53, z= 2

    2

    53,x= 19, y= 22, z= 532,x= 19, y= 2 53, z= 2 53,x= 19, y= 532, z= 22,x= 19, y= 22 53, z= 53,x= 19, y= 2 532, z= 2,x= 19, y= 192 532, z= 1,

    x =53 y |z| = 22 192 22 192 3 3 = 9 x =53 2 9 2 = 36 x z

    x= 53, y= 1, z= 22 192,x= 53, y= 2, z= 2 192,x= 53, y= 19, z= 22 19,x= 53, y= 22, z= 192,x= 53, y= 2 19, z= 2 19,x= 53, y= 192, z= 22,x= 53, y= 22 19, z= 19,x= 53, y= 2 192, z= 2,x= 53, y= 22 192, z= 1.

    108+36+36+36 =216

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    2006/07 2011/12. 2 2013/14.

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