Các câu hỏi tương tự
Tim GTLN ,GTNN cua bieu thuc :A=\(\frac{x+1}{x^2+x+1}\)
Tim GTLN cua bieu thuc sau \(\frac{2}{\frac{-\sqrt{x}}{x+\sqrt{x}+1}}+\sqrt{x}\)
Tim GTLN cua bieu thuc: Q = \(\frac{-\left(\sqrt{x}+2\right)^2}{\sqrt{x}}\)
Tim GTLN cua bieu thuc
\(J=\frac{2010}{4x+20\sqrt{x}+30}\)
Cho pt 2x^2 +2mx +m^2-2
a. Tim m de pt co ngo
b. Tim GTLN cua bieu thuc C=|2x1x2+x1+x2-4|
Cho bieu thuc:
P=\(\frac{1}{\sqrt{x}+2}-\frac{5}{x-\sqrt{x}-6}-\frac{\sqrt{x}-2}{3-\sqrt{x}}\)
a. Rut gon bieu thuc P
b.Tim GTLN cua P sau khi rut gon
Cho bieu thuc: \(p=\left(\frac{1}{\sqrt{x}-\sqrt{x-1}}-\frac{x-3}{\sqrt{x-1}-\sqrt{2}}\right)\left(\frac{2}{\sqrt{2}-\sqrt{x}}-\frac{\sqrt{x}+\sqrt{2}}{\sqrt{2x}-x}\right)\)
a) Tim DKXD cua bieu thuc p
b) Rut gon bieu thuc p
Voi x>=-2.Tim GTNN cua bieu thuc N=x^2+2x+1/(x+2)
Tim gia tri lon nhat va gia tri nho nhat cua bieu thuc sau: A=\(\frac{x+1}{x^2+x+1}\)