Các câu hỏi tương tự
1 tim MAX cua (x+z)(y+t) biet x^2+y^2+z^2+t^2=1
2 tim MAX cua (x+z)(y+t) biet x^2+y^2+2z^2+2t^2=1
tim gia tri lon nhat cua \(\frac{yz\sqrt{x-1}+xz\sqrt{y-2}+xy\sqrt{z-3}}{xyz}\)
cho x,y dương thoa man : x^2/9 + y^2/16 = 36. tim gia tri lon nhat cua p =x-y+2004
cho x ,y thoa man x+3y=2
tim gia tri lon nhat cua p=x2+y2
cho x;y;z duong thoa man xyz=1
tim gia tri nho nhat cua \(\frac{1}{x^2\left(y+z\right)}+\frac{1}{y^2\left(x+z\right)}+\frac{1}{z^2\left(x+y\right)}\)
giai giup minh voi
cho 0 <= X<= 3/2.tim gia tri lon nhat cua y=x(3-2x)2
Tim gia tri lon nhat va gia tri nho nhat cua bieu thuc sau: A=\(\frac{x+1}{x^2+x+1}\)
tim gia tri nho nhat cua \(\frac{1}{1+xy}+\frac{1}{1+yz}+\frac{1}{1+xz}\)voi x;y;z>0 va x^2+y^2+z^2<=3
cho x;y;z>0 thỏa mãn x^2+y^2+z^2<=3
tim gia tri nho nhat cua \(\frac{1}{1+xy}+\frac{1}{1+yz}+\frac{1}{1+xz}\)