maths-9th

2
g c * è â e w Ä 75 À : (Fresh) ' , Z ñ ) ® ) 2 ] 3 À z Ü : â ^ : t 6 , p & V Z z w Ô Š z x Z z g Î x 6 , Œ ì X 15 : z Z z w 4 20 z Ü : â ^ : Š g Z [ » Z N [ 1 X [ X ` X Š Å ß g ] ~ Æ t Š Ø { à { â V ~ Š g ` , X » ^ Ô S Z z g Š z ! * g { Z ! * ] à à ð 7 Ð X t z Z z w z ¢ ï G G L H g 6 , f Z ! ð Š , X X X X X X X X X X X X X X X = |A|  A = ) 1 ( X bd - ac 4 X ad - bc 3 X ac - bd 2 X ab - cd 1 X Š g C Ñ ¤ / í ~ Z k X X X X X X X X X X X ƒ @ * ì X ( X 2) 5 4 X 11 3 X e 2 X 10 1 X » { ā X X X X X X X X X X X ì X 0.000045 ( 3) -5 4 X 5 3 X -4 2 X 4 Z X X X X X X X X X X X X X X X = (a + b) 2 + (a - b) 2 ( 4) 5a 4 - b 4 4 X 2(a 2 + b 2 ) 3 X a - 2a 2 b 2 + b 4 2 X 4ab 1 X Æ Z b Z ñ ¢ ! ÷ ? x 2 +2x-24 ( 5) (x-3) (x+8) 4 X (x+3) (x-8) 3 X (x+6) (x-4) 2 X (x-6) (x+4) 1 X » ¬ Š Z W ì X a 2 - 4ab + 4b 2 Z z g a 3 - 8b 3 ( 6) (a + 2b ) 2 4 X a + 2b 3 X a 2 + 2ab + b 2 2 X a - 2b 1 X » i à L ì X ( 7) { } 4 X {-10} 3 X {10} 2 X {100} 1 X » i à L ì X 5 - 3x = -4 ( 8) {9} 4 X {3} 3 X {1,3} 2 X {-3} 1 X X X X X X X X X X X X X X g , ~ z Z µ ì X (3, -4) ` ( 9) 4 X a ¸ 3 X Š } 2 X Š z u } 1 X ¬ ' . 0 î J G Z ² Z z t [ ~ Z q - i Z z t [ Z z g Š z i Z z b X X X X X X X X X X X ƒ D ÷ X ( 10) 4 X à ð 7 3 X _ 5 Ð . 2 . ç F E H ~ 2 X » z Z X q Š { ' . 0 î J G Z ² Z z t Ô § z Z : [ ~ ° } Æ i Z z - V ~ C Ù Z q - Å l Z g X X X X X X X X X ƒ C ì X ( 11) 90 0 4 X 60 0 3 X 45 0 2 X 30 0 1 X % , Æ z F , ƒ D ÷ X (12) 4 X § z Z z g ! * ë À Š 3 X § z 2 X ) § z 1 X ! * ë À Š [ Æ Z H q Æ À Š ~ * * ŗ X X X X X X X X X ƒ D ÷ X ( 13) 4 X à ð 7 3 X á Z i ~ 2 X ë ` 1 X § z Ë [ Æ Û z ã i Z z t Z z g | Z 0 + g z ã i Z z t X X X X X X X X X i Z z b ƒ D ÷ X ( 14) 4 X ) § z 3 X § z 2 X _ 5 Ð . 2 . ç F E H ~ 1 X ² . 5 Ð . 2 . ç F E H ~ ' . 0 î J G Z ² Z z t [ Æ Z H q ÷ X ( 15) 12,10,8 4 X 10,8,6 3 X 8,6,4 2 X 6,4,2 1 X

Upload: abdulwahab-afridi

Post on 03-Oct-2015

2 views

Category:

Documents


0 download

TRANSCRIPT

  • gc* ew75 : (Fresh) '''',,,,ZZZZ))))))))2222 ] 3 z:

    ^:t6,p&VZzwzxZzgx6,X15 : zZzw 420 z:

    ^:gZ[ZN[1X[X`Xg]~t{{V~g`,X^SZzgz!*g{Z!*]7XtzZzwzGGLHg6,fZ!,X

    XXXXXXXXXXXXXX = |A | A = )1(X

    bd - ac 4X ad - bc 3X ac - bd 2X ab - cd 1X

    gC/~ZkXXXXXXXXXXX@*X (X 2)5 4X 11 3X e 2X 10 1X

    {XXXXXXXXXXXX 0.000045 (3)-5 4X 5 3X -4 2X 4 ZX

    XXXXXXXXXXXXXX =(a + b)

    2 + (a - b)

    2 (4)

    5a4 - b

    4 4X 2(a2+ b2) 3X a - 2a2b2+ b4 2X 4ab 1X

    ZbZ!? x2+2x-24 (5)(x-3) (x+8) 4X (x+3) (x-8) 3X (x+6) (x-4) 2X (x-6) (x+4) 1X

    ZWX a2- 4ab + 4b2 Zzg a3 - 8b3 (6) (a + 2b )

    2 4X a + 2b 3X a2 + 2ab + b2 2X a - 2b 1X

    iLX (7)

    { } 4X {-10} 3X {10} 2X {100} 1X

    iLX 5 - 3x = -4 (8){9} 4X {3} 3X {1,3} 2X {-3} 1X

    XXXXXXXXXXXXXg,~zZX (3, -4)` (9)4Xa 3X} 2Xzu} 1X

    '.0 JGZZzt[~Zq-iZzt[ZzgziZzbXXXXXXXXXXXDX (10)4X7 3X_5.2. FEH~ 2Xz ZXq{

    '.0 JGZZztzZ:[~}iZz-V~CZq-lZgXXXXXXXXXCX (11)90

    0 4X 600 3X 450 2X 300 1X

    %,zF,DX (12)

    4XzZzg!* 3Xz 2X)z 1X!*

    [ZHq~**XXXXXXXXXDX (13)

    4X7 3XZi~ 2X` 1Xz

    [ziZztZzg|Z0+gziZztXXXXXXXXXiZzbDX (14)

    4X)z 3Xz 2X_5.2. FEH~ 1X

    .5.2. FEH~

    '.0 JGZZzt[ZHqX (15)

    12,10,8 4X 10,8,6 3X 8,6,4 2X 6,4,2 1X

  • ewgc*(Fresh) '''',,,,ZZZZ))))))))2222

    60:::: ]]]] 2:40 zzzz::::

    36:::: zzzzzzzzxxxx

    ZZZZbbbbZZZZYYYYiiii,,,,???? 9 ::::ggggzzzzffffssss~~~~ 2 ZZZZwwww

    ),g=\gzwi,? x - 2y = 1 3x + y = 10 Xi

    4 - 3i , 2 + 3i q[x,? Xii

    (0.04) (2.56) &+g=/i,X Xiii

    7x,? a2 + b2 + c2 ab + bc + ca = 11 Zzg a + b + c = 6 Xiv

    x4 + x

    2 + 1 ~,? Xv

    (x + 2) (x + 4) (x + 6) (x + 8) - 9 ~,? Xvi

    x2 - 2x - 3 , x

    2 - x - 6 &+g=ZWx,? Xvii

    x6 - 2x

    5 + 3x

    4 - 2x

    3 + x

    2_.gx,? viii

    XZZx,? 159 &tZZ ix

    |5x - 13| + 2 = 14 iLx,? x

    x + 4y - 5 , 2x + 3y = 0 &+g=/Zsi,? xi

    iLx,? xii

    24:::: zzzzxxxx

    ggggzzzzffffssss~~~~&&&&ZZZZ]]]]iiii,,,,????xxxxZZZZ]]]]'''',,,,ZZZZ'''',,,,XXXX ^::::

    (10 , -2 ) , ( -7, 4 ) , ( 3, -5 ) :[%/x,XZkgZkV 3 Zw

    :[zZHqzVo5zZ}IZi~ZzgM~Zk@*X 4 Zw

    :[zZHqMV}IM(,Z@*? 5 Zw

    X ABC :Zq-[ 6 Zw

    m AB = 5cm , mBC = 4cm, m CA = 4.5cm