Các câu hỏi tương tự
1.Tim GTNN 2x^2-8x-3
2.tim GTNN x^4-13x^2+36
cho x,y thuoc R khac 0 thoa man 2x^2 + y^2/4 +1/x^2 = 4. tim gtnn gtln cua A= 2008+xy
tim GTNN cua
a) A=x2 +3x 5/ x2+2x +1(x khac -1)
b) B = x4+x2+5/ x4+2x2+1
tim GTNN cua A = 2x2 + 3x +4
Tim GTNN cua bieu thuc
\(M=\frac{x^4+x^2+5}{x^4+2x^2+1}\)
cho x>=2.Tim gtnn cua P=\(2x+\frac{3}{x}+\frac{4}{x^2}\)
tim gtnn hoac gtln cua bieu thuc sau
A=100-(x^2-4)^2-3(x+2)^2
B=4-2x^2+3x
mn giup mk vsss
tim GTNN cua A=x^2+4y^2-2xy-2x-10y+2016
tim gtnn cua A=x^2+y^2+2xy+2x+2y+3