Các câu hỏi tương tự
cho 2 so x va y thoa man 3x+y=1
a) Tim GTNN cua bt M=3x^2+y^2
b) Tim GTLN cua bt N=x*y
cho x+y=1.tim GTNN cua bt x^3+y^3+2xy
tim gtnn cua [x]+[x-2]
[x] la gia tri tuyet doi cua x nha
x+2y=1. Tim gtnn cua K=x2+2y2
1/Tim GTLN cua bieu thuc \(M=\frac{4x^2}{x^4+1}\)
2/ Biet x+y =2. GTNN cua bieu thuc A=3x2+y2 là?
ban nao giai cho minh thi minh xin tang ban do 20 like.
Tim GTnn cua x^2-2xy+2y^2-6y+9
tim GTNN cua bt sau
A=(x-1)(x+2)(x+3)(x+6)
tim gtnn cua c=2x^2-2xy+2y^2+4y-1
Tim gtln hoac gtnn cua bt
A=27-12x/x^2+5