Rabu, 19 Februari 2014

Tugas XI IPA 2



11.       Dengan teorema sisa tentukan sisa pembagian F(x) = 3x3 – 4x2 + 3x + 7 dibagi oleh (1 - x)
22.       Tentukan nilai p jika diketahui f(x) = 6x3 + 7x2 + px – 24 habis di bagi (2x - 3)
33.       Tentukan sisa pembagian f(x) = 4x4 + 5x2 – 3x + 10

ggunakan 2 cara untuk menentukan sisa pembagian di atas
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7 komentar:

  1. Unknown21 Februari 2014 pukul 17.36

    Peny :

    F(x) => 3x3 – 4x2 + 3x + 7

    1 – x => -x = -1
    X = 1

    >>Cara subtitusi
    X = 1 => S = 3(1)3 – 4(1)2 + 3(1) + 7
    =3 – 4 + 3 + 7
    =(-1) + 3 + 7
    =9
    >>Cara Horner
    F(x) = 3x3 – 4x2 + 3x +7

    X=1 3 -4 3 7

    3 `-1 2
    3 -1 2 9


    2.>>Cara subtitusi

    2x – 3 => 2x = 3/2
    S = F (3/2) = 6x3 + 7x2 +px – 24
    =6(3/2)3 + 7(3/2) + p(3/2) - 24
    = 6 + 7 + p – 24
    = 13 + p – 24
    P=24 – 13
    =11


    >>Cara horner

    X= 3/2 6 7 11 -24
    9 24 52,5
    6 16 35 28,5

    BalasHapus
  2. Unknown21 Februari 2014 pukul 17.40

    Peny :

    F(x) => 3x3 – 4x2 + 3x + 7

    1 – x => -x = -1
    X = 1

    >>Cara subtitusi
    X = 1 => S = 3(1)3 – 4(1)2 + 3(1) + 7
    =3 – 4 + 3 + 7
    =(-1) + 3 + 7
    =9
    >>Cara Horner
    F(x) = 3x3 – 4x2 + 3x +7

    X=1 3 -4 3 7

    3 `-1 2
    3 -1 2 9


    2.>>Cara subtitusi

    2x – 3 => 2x = 3/2
    S = F (3/2) = 6x3 + 7x2 +px – 24
    =6(3/2)3 + 7(3/2) + p(3/2) - 24
    = 6 + 7 + p – 24
    = 13 + p – 24
    P=24 – 13
    =11


    >>Cara horner

    X= 3/2 6 7 11 -24
    9 24 52,5
    6 16 35 28,5

    BalasHapus
  3. Unknown21 Februari 2014 pukul 17.43

    Peny :

    F(x) => 3x3 – 4x2 + 3x + 7

    1 – x => -x = -1
    X = 1

    >>Cara subtitusi
    X = 1 => S = 3(1)3 – 4(1)2 + 3(1) + 7
    =3 – 4 + 3 + 7
    =(-1) + 3 + 7
    =9
    >>Cara Horner
    F(x) = 3x3 – 4x2 + 3x +7

    X=1 3 -4 3 7

    3 `-1 2
    3 -1 2 9


    2.>>Cara subtitusi

    2x – 3 => 2x = 3/2
    S = F (3/2) = 6x3 + 7x2 +px – 24
    =6(3/2)3 + 7(3/2) + p(3/2) - 24
    = 6 + 7 + p – 24
    = 13 + p – 24
    P=24 – 13
    =11


    >>Cara horner

    X= 3/2 6 7 11 -24
    9 24 52,5
    6 16 35 28,5

    BalasHapus
  4. Unknown21 Februari 2014 pukul 17.46

    Peny :

    F(x) => 3x3 – 4x2 + 3x + 7

    1 – x => -x = -1
    X = 1

    >>Cara subtitusi
    X = 1 => S = 3(1)3 – 4(1)2 + 3(1) + 7
    =3 – 4 + 3 + 7
    =(-1) + 3 + 7
    =9
    >>Cara Horner
    F(x) = 3x3 – 4x2 + 3x +7

    X=1 3 -4 3 7

    3 `-1 2
    3 -1 2 9


    2.>>Cara subtitusi

    2x – 3 => 2x = 3/2
    S = F (3/2) = 6x3 + 7x2 +px – 24
    =6(3/2)3 + 7(3/2) + p(3/2) - 24
    = 6 + 7 + p – 24
    = 13 + p – 24
    P=24 – 13
    =11


    >>Cara horner

    X= 3/2 6 7 11 -24
    9 24 52,5
    6 16 35 28,5

    BalasHapus
  5. Unknown21 Februari 2014 pukul 17.50

    Peny :

    F(x) => 3x3 – 4x2 + 3x + 7

    1 – x => -x = -1
    X = 1

    >>Cara subtitusi
    X = 1 => S = 3(1)3 – 4(1)2 + 3(1) + 7
    =3 – 4 + 3 + 7
    =(-1) + 3 + 7
    =9
    >>Cara Horner
    F(x) = 3x3 – 4x2 + 3x +7

    X=1 3 -4 3 7

    3 `-1 2
    3 -1 2 9


    2.>>Cara subtitusi

    2x – 3 => 2x = 3/2
    S = F (3/2) = 6x3 + 7x2 +px – 24
    =6(3/2)3 + 7(3/2) + p(3/2) - 24
    = 6 + 7 + p – 24
    = 13 + p – 24
    P=24 – 13
    =11


    >>Cara horner

    X= 3/2 6 7 11 -24
    9 24 52,5
    6 16 35 28,5

    BalasHapus
  6. Anonim21 Februari 2014 pukul 18.08

    Nama : Chicilia makitika
    F(x) =) 3x3-4x2+3x+7
    1-x=)-x=-1
    X=1
    =) Cara subtitusi
    X=1=) S =3(1)3-4(1)2+3(1)+7
    = 3-4+3+7
    = (-1)+3+7
    = 2+7
    = 9

    =) Cara horner
    F(x) =3x3-4x2+3x+7
    X=1 3 -4 3 7
    3 -1 2
    3 -1 2 (9


    =) Cara subtitusi
    2) 2x-3=) 2x= (3/2)
    S = f (3/2) =6x3+7x2+px-24
    =6 (2/3)3+7 (3/2)2+P (3/2)-24
    =6 (27/8)+7 (9/4)+P(3/2)-24
    =6+7+P-24
    =13+P-24
    P=24-13
    P=11
    =(162/8)+(63/4)+(33/2)-24
    =81/4+63/4+33/2-24
    =144/4+33/2-24/1
    =144+66-96/4
    =144/4=28,5
    =) Cara horner
    X=3/2 6 7 11 -24
    9 24 52,5
    6 16 35 (28,5

    BalasHapus
  7. Unknown21 Februari 2014 pukul 18.23

    Nama : Chicilia makitika
    F(x) =) 3x3-4x2+3x+7
    1-x=)-x=-1
    X=1
    =) Cara subtitusi
    X=1=) S =3(1)3-4(1)2+3(1)+7
    = 3-4+3+7
    = (-1)+3+7
    = 2+7
    = 9

    =) Cara horner
    F(x) =3x3-4x2+3x+7
    X=1 3 -4 3 7
    3 -1 2
    3 -1 2 (9


    =) Cara subtitusi
    2) 2x-3=) 2x= (3/2)
    S = f (3/2) =6x3+7x2+px-24
    =6 (2/3)3+7 (3/2)2+P (3/2)-24
    =6 (27/8)+7 (9/4)+P(3/2)-24
    =6+7+P-24
    =13+P-24
    P=24-13
    P=11
    =(162/8)+(63/4)+(33/2)-24
    =81/4+63/4+33/2-24
    =144/4+33/2-24/1
    =144+66-96/4
    =144/4=28,5
    =) Cara horner
    X=3/2 6 7 11 -24
    9 24 52,5
    6 16 35 (28,5

    BalasHapus

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