Các câu hỏi tương tự
Cho cac so thuc x , y thay doi thoa man x + y = 2 . Tim gia tri nho nhat cua bieu thuc P = ( x4 + 1 )(y4 + 1) + 2013
\(\sqrt{x^2+4x+4}+\sqrt{x^2-6x+9}\) tim gia tri nho hat cua bieu thuc
Cho x,y la cac so thuc duong. Tim gia tri nho nhat cua bieu thuc:
\(P=\frac{xy}{x^2+y^2}+\left(\frac{1}{x}+\frac{1}{y}\right)\sqrt{2\left(x^2+y^2\right)}\)
cho x.0 .Tim gia tri nho nhat cua bieu thuc A=9x2-5x+1/9x+2013
tim gia tri cua x thuoc Z de cac bieu thuc sau co gia tri nguyen :a) \(\frac{\sqrt{x}+5}{\sqrt{x}+1}\)
b) \(\frac{\sqrt{x}+2}{\sqrt{x}-2}\)
cho x,y la cac so duong thay doi va thoa man dieu kien x+y\(\le\)1. tim gia tri nho nhat cua bieu thuc M=\(\frac{1}{x^2+y^2}+\frac{1}{xy}+4xy\)
cho A = \(\frac{3}{\sqrt{x}-2}\)
tim cac gia tri cua x de A co gia tri nguyen
cho a,b la cac so duong thoa man : a+b=1
Tim gia tri nho nhat cua bieu thuc: T= \(\frac{19}{ab}+\frac{6}{a^2+b^2}+2011\left(a^4+b^4\right)\)
Tim gia tri lon nhat va gia tri nho nhat cua bieu thuc sau: A=\(\frac{x+1}{x^2+x+1}\)