ГДЗ - алгебра - 9 класс - Мордкович

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  • 2 9

    9 .:

    .. . .: , 2000 .

    -

  • 3

    ..........................................................................................4 1.

    1. .......................................... 20 2. ........................................................... 27 3. ............................................ 42 ........................................................... 68

    2. 5. ......................................................................... 75 6. ............................................ 89

    7. ............................................................................................ 115

    3. 9. . , ........................................ 132

    10. ........................................................ 142 11. ..................................................................... 146 12. .................................................... 154 13. = n (n N), ...................... 160 14. = n (n N), .................... 171

    15. = mf(x), = f(x) ....................................... 180

    ......................................................... 186

    4. 17. .................................................................... 189

    18. .................................................... 197 19. ...................................................... 208

    5. 21. ................................................................ 219 22. .................. 223 23. . .................................... 227 24. ............. 235

    25. ............................ 241 26. y = sin x, y = cos x, ............................. 245 ........................................................................ 253

  • 4 1.

    )

    =3

    131027

    3689

    1210365,0:

    3147,2)

    36172

    1278(

    ==4

    3223

    201027

    36220

    65100 .

    659

    320 =

    )

    +=

    +158

    100144

    3613

    24355625,0

    15844,1

    3613

    24111

    ==5015

    1002131

    100005625 .32,2

    100232 =

    2.) 222 2155153)3(5)5(3 =+= ;) 222 2322)23()(2 yyxyyyxxyyyxy =+=+ .

    3.) 05)12(2)52(2 2 = xxxx , 0524522 22 =++ xxxx ,

    03 =x , 3=x ;) 031)712(5,0)2(6 2 =+ xxxx , 0315,36126 22 =++ xxxx ,

    315,15 =x , 2=x .4.

    =++++ ))(2())(2())(2( bacbacabacbcacb+++++= bcaccabaacabbcbaccbc 2222 2222

    022 22 =+++ bcbabacaba .5.

    ) 222 2)( xaxaxa ++=+ ; ) 93636)36( 2 += bbb ;) 222 94864)38( yxyxyx ++=+ ; ) 222 43681)29( qpqpqp += .

    6.) 19)13)(13( 2 =+ aaa ; ) 1)1)(1( 32 =++ xxxx ;) 462323 25100)510)(510( yxyxyx =+ ;) 64)164)(4( 32 +=++ xxxx .

    7.) :8,0=a =+++=+ 15223)3)(5()2)(1( 22 aaaaaaaa

    =+= 17a 8,1717)8,0( =+ ;

  • 5) :5,0=m906)81(96)9)(9()3( 222 +=++=++ mmmmmmm

    8790390)5,0(6 =+=+= ;) :

    61=a

    +=+++ aaaaaaaaa 21243)5)(2()4)(3( 22

    226105 = aa 212212261)6( ==

    = ;) :25,0=c =+=+++=++ 2041644)4)(4()2( 222 ccccccc

    19204)25,0( =+= .8.

    ) 9609610)4353)(4353(4353 22 ==+= ;) ==+= 26014

    910)123137)(123137(

    910123137

    91022 4

    1 ;

    ) ==+

    +=

    24363162126

    )90153)(90153()18144)(18144(

    9015318144

    22

    22

    34 ;

    ) 78,0100

    108,7100

    )3,17,8(8,7100

    3,18,77,88,7 ==+=+ .9.

    ) )3(32 +=+ xaxaxax ;) )423(5201015 2232223 yxyyxyxyxyx +=+ ;) )65(65 2222 bbababa = ;) )17715(1322191195 523531036556 ppccpcpcpcpc +=+ .

    10.) ))(()()( cxbacbaxbabcacbxax ++=+++=+++ ;) ))(4()(4)(444 baybababaybya ++=+++=+++ ;) ==+ )59()(5)(95599 2 mnmnmmnmmnm )( nm ;) =+++=+++ )2(5)2(163210516 22222322 cbccbaacccbab

    )2)(516( 22 cbca ++= .11.

    ) 1817)117(171717 5556 =+=+ 18;) 903103)13(333 13152151517 ==+=+ 90;) 4342)142(424242 71778 =+=+ 43;) 72292)12(222 17203202023 ==+=+ 72.

  • 612.) +=+ )2,12,6(7,27,22,13,92,62,13,92,67,2

    60125)7,23,9(553,97,25)2,12,6(3,9 ==+=+=+ ;) ++=+ 82(31)8348(125831254331823148125

    12500100125)31131(12512531131125)43 ====+ ;) =+ )37109(17,9722,117,9377237,517,9109

    360572)17,417,9(7217,4727217,9)2,137,5(72 ==== ;) +=++ )1618(9,19161,30181,30169.19189.19

    100)9,191,30(22 1,309,192)1618(1,30 =+=+=+ .13.

    ) )7)(7(492 += mmm ;) )3)(3(3)(9 2222 +== acacacca ;) )98)(98(8164 22 qpqpqp += ;) ))((10)(101010 2222 yxyxyxyx +==+ .

    14.) )164)(4(464 2333 ++== ccccc ;) =+=+ 222224 )2(252)5(42025 baaabbaa 222 )25( ba ;) 22222 )(5)2(55105 bababababa +=++=++ ;) ))((15)(151515 223333 dadadadada ++=+=+ .

    15.) ==+ xyxyyxxyxyyxx ()()( 223223

    )()())( 222 yxyxyxy += ;) ==+=+ dddddd (3)8(964165516 2222

    )5)(11()38)(38 =+ ddd ;) +=+= mnmmnnmnmnm )(2()2(442 2222

    )12)(2()2()2 +=+ nmmnmnn ;) =+=++=++ 25)8(2564163916 222 nnnnn

    )13)(3()58)(58( ++=+++= nnnn .16.

    ) 76

    )(7)(6

    7766 =+

    +=++

    baba

    baba ;

    ) aamama

    ammmama

    mamamma =

    ==

    )()()(

    2

    22;

  • 7) 41

    )2(4)2(

    )2(8)2(2

    81642 =

    ==

    pq

    pqpqqp

    pqqp ;

    ) yxzxzy

    xzyzxy

    xyZyzyxy =

    ==

    )()()(

    3

    4

    33

    44.

    17.

    ) 7

    1)7(7

    49147

    22 ==+

    bb

    bbb

    b ;

    ) yxyx

    yxxyxy

    yxyxxy

    +=

    +=+

    222

    22

    )())((

    2;

    ) =+++=+

    +=++

    1525)1525)(15(

    15251)5(

    25511125

    2

    2

    2

    3

    2

    3

    yyyyy

    yyy

    yyy 15 +y ;

    ) 12

    1)124)(12(

    12418

    1242

    2

    3

    2

    +=+++=+

    +tttt

    ttt

    tt .

    18.

    ) 72

    2323

    91)3(26)3(

    )199(9)127(27

    9992727

    12

    12

    62

    43

    26

    4

    678

    45=

    ==++

    =++ ;

    ) 102

    5211)2(55)2(

    )144(4)188(8

    444888

    26

    27

    132

    93

    213

    29

    131415

    91011==

    ==

    .

    19.

    ) 22

    2

    2

    2)1(1221

    xx

    xxx

    xx

    x=+=+ ;

    ) ( )( )( )

    2242553353

    yxyx

    yxyxyxyx

    yxyx +=+

    ++=++ ;

    ) 66

    3232

    346

    2 1

    5511551dd

    dddddd

    dd

    d =++=+ ;

    ) )1(42

    53)1(42

    1835)1(7

    3)1(6

    577

    366

    5+=+

    +=+++=+++ cc

    ccc

    cc

    cc

    cc

    cc .

    20.

    ) =+=+

    +22 )2(

    )2(5232

    544

    23c

    ccccc

    c 2)2()6(2

    cc ;

    ) 8

    2)42)(2(424

    21

    84

    32

    22

    3

    2

    +=++++=++

    +y

    yyYyyyy

    yyy ;

  • 8) =+

    ++

    2392

    3263

    492)316(3

    2 aa

    aa

    aaa

    =+++=

    )23)(23()23)(92()23)(63(948 2

    aaaaaaaa

    ( )( ) 231

    2323182746121869948 222

    +=+++=

    aaaaaaaaaaa .

    ( ).

    ) =++ nmnmm

    nmmn 122

    2233

    =++++++=

    ))()(())(()(2)(2

    22

    2222

    nmnmnmnmnmnmnmnmnmmnmmn

    =+=

    ))(( 3333

    nmnmnm

    33

    22

    33

    22

    ))(())((

    nmnmnm

    nmnmnmnmnm

    +++=+

    ++ .

    21.

    ) ( )( )x

    yxyxxy

    yyxyxyx

    yxy

    yx +=+=

    )(333

    3

    22;

    ) c

    cc

    dcdcc

    dc

    cdc

    4)7(

    )7(25

    10)7)(7(

    5142:

    10492 =+

    +=+ ;

    ) =++

    =

    ++

    )5(2)4)(4(

    )4(3)5(

    16102:

    1232510 2

    2

    2

    xxx

    xx

    xx

    xxx

    6)4)(5( xx ;

    ) =+++

    ++=+++

    +42

    )94()94(3

    )42)(2(42

    9427128

    2

    2

    22

    3

    ttt

    ttttt

    ttt

    ttt

    tt3

    2+ .

    22.

    ) =+++=+

    ++ )(

    )(2)()(2

    2ba

    baaabbaba

    bab

    aba

    aba 22 + ;

    )

    =+

    + )()() 22 mnmn

    mnnm

    nmmn

    mnmn

    mnnm

    1))(())((

    )(

    22=+

    +=+=+ nmmn

    nmnmnm

    mnmnmn

    nmnm

    mn .

    23.

    ) ababab

    abab

    abab

    abab

    abba +=+

    ==

    1

    ))((:11

    22

    22;

  • 9) +++=

    +++

    )5(1

    3)5)(5(

    35

    51

    325

    22

    2

    aaaaa

    aaa

    aaaa

    =+++=

    +)3)(3(

    )3)(5()3)(5()3(

    5aaa

    aaaaaa

    a9

    162 a .

    24.

    )

    =+=

    ;102,1435

    yxyx

    ==

    ;210,1435

    xyyx

    ==+

    ;210,146305

    xyxx

    =

    =;210

    ,4411xy

    x

    ==

    ;24

    yx

    )

    ==+

    ;567,5543

    baba

    =

    =+;567

    ,55224283ab

    aa

    ==

    ;7,9

    ba

    )

    ==

    ;9054,3074

    yxyx

    =+

    +=;905730

    ,7304yyyx

    =

    +=;602

    ,7304y

    yx

    ==

    ;30,60

    yx

    )

    =+=+

    ;144,1142

    baba

    =+

    =;11124

    ,1124aaab

    =

    =;126

    ,1124a

    ab

    ==

    ;47

    ,2

    b

    a

    25.

    )

    =+=+

    ;55,22,154

    yxyx 2.

    =+=+

    ;1054,154

    yxyx , , . .

    )

    ==

    ;434

    ,1234

    yx

    yx

    ==+

    ;434

    ,12123434

    xy

    xx

    ==

    ;434

    ,00

    xy

    x

    ( ;x )434 x ,

    .26.

    ) 31314

    7135

    169196

    7135

    169271

    7135 === ;

    ) =+=164

    )124165)(124165(164

    124165 22 5,82

    174

    289 == ;

    ) 0447

    16474

    49256

    474

    49115

    474 ==== ;

    ) =++=

    )5,315,193)(5,315,193()5,965,145)(5,965,145(

    5,315,1935,965,145

    22

    22

  • 10

    13577

    159117

    22516224249

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