\(a+b=-4\); \(b+c=-6\); \(a+c=12\)
\(\Rightarrow a+b+b+c+a+c=\left(-4\right)+\left(-6\right)+12\)
\(\Rightarrow2\left(a+b+c\right)=2\)\(\Rightarrow a+b+c=1\)
\(a+b=-4\)\(\Rightarrow c=1-\left(-4\right)=5\)
\(b+c=-6\)\(\Rightarrow a=1-\left(-6\right)=7\)
\(a+c=12\)\(\Rightarrow b=1-12=-11\)
Vậy \(a=7\), \(b=-11\), \(c=5\)
tim 3 so nguyen a,b,c thoa man :
a + b = -4 ; b + c = -6 ; c + a = 12
Tim 3 so nguyen a, b, c thoa man : a+b=-4 ; b+c=-6 ; c+a=12.
Giai can ke tung chi tiet thi tui moi tick cho.
Tim tat ca bo ba so nguyen (a,b,c) thoa man
a^3(b-c)+b^3(c-a) + c^3(a-b)=1964^2013
Tim so nguyen a, b thoa man:
a+b=-12 va a-b=8
tim cac so nguyen a,b,c thoa man dong thoi 3 dang thuc
a*b*c+a=1333;a*b*c+b=1335;a*b*c+c=1341
tim cac so nguyen a;b;c thoa man dong thoi 3 dang thuc :a.b.c+a=2011;a.b.c+b=2013;a.b.c+c=2015
tim cac so nguyen duong a,b,c thoa man a+b+c=91 va b^2=a*c
Tim 3 so nguyen to khac nhau a,b,c thoa man: a.b.c=3(a+b+c)
Giup mih nha minh dang can gap
tim tat ca cac so nguyen to a,b,c co the bang nhau thoa man abc<ab+bc+ca chung minh rang neu b la so nguyen to >3 thi (b+1)(b-1) chia het cho 24
