1) 3x-5y+5z=7
X-3y+2z=9 İse x+y+z=? A)-12 B)-11 C)-10 D)-9 E)-8
2) x²+y²+4x-6y+13=0 ise x.y=? A)-10 B)-8 C)-6 D)-4 E)-2
3)x/√x+y/√y=√xy ise y nin x cinsinden degeri nedir?
A)x-2√x+1 B)x+1/2√x C) x/x+1-2√x D) x+1 E)x-2√x
1) 3x-5y+5z=7
X-3y+2z=9 İse x+y+z=? A)-12 B)-11 C)-10 D)-9 E)-8
2) x²+y²+4x-6y+13=0 ise x.y=? A)-10 B)-8 C)-6 D)-4 E)-2
3)x/√x+y/√y=√xy ise y nin x cinsinden degeri nedir?
A)x-2√x+1 B)x+1/2√x C) x/x+1-2√x D) x+1 E)x-2√x
C.2
İfadeyle azcıkın oynayalım.
x²+4x+4 + y²-6y+9 =0
(x+2)²+(y-3)²=0
x=-2 , y=3 çarpımları ise -6 olur.
1-SORU
https://img96.imageshack.us/img96/5093/mat15122012.gif
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3-SORU
https://img195.imageshack.us/img195/...at15122012.gif