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sufyan
sufyan asked in Sains & MatematikaMatematika · 10 years ago

matematika nih tentang SPLTV?

mhn prtolongannya ya , soal ini ssh...

1.hp dri 3x+y=7;4x-z=10 dan 2y-3z=8 adalah {(x,y,z)}, mka nilai dri x+y+z adlh?

2diket: (x,y,z) adlh pnyelesaian dr x+y+2z=4;x-2y-z=7, dan 3x-y-3z=7, mka nlai dr(x+y)z adlh..

3pnyelesaian dr 2x-y+z=5;x-2y+3z=10; dann 3x-2y+z=14 mka xy+z adlh...

4hp dr prsamaan a+b+c=12; 2a-b+2c=12 dan 3a+2b-c=8 adlh {(a,b,c)}, mka a:b:c adlh...

5suatu fungsi kuadrat f(x)=ax^2+bx+c brnilai 4 untk x=1, brnilai 15 untk x=2, dan brnilai -3 untk x=0 mka untk x=-1 fungsi tersebut brnilai...

mhn bantuannya ya^^

1 Answer

Rating
  • Stevy
    Lv 4
    10 years ago
    Favorite Answer

    1. x = 2

    y = 1

    z = -2

    x+y+z=2+1-2=1

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