\(\)
\(p=\sqrt{x}\left(1-\sqrt{x}\right)=-x+\sqrt{x}=-\left(\sqrt{x}\right)^2+2\sqrt{x}\cdot\frac{1}{2}-\frac{1}{4}+\frac{1}{4}=-\left(\sqrt{x}-\frac{1}{2}\right)^2+\frac{1}{4}\le\frac{1}{4}\Leftrightarrow x=\sqrt{\frac{1}{2}}\)
\(\)
\(p=\sqrt{x}\left(1-\sqrt{x}\right)=-x+\sqrt{x}=-\left(\sqrt{x}\right)^2+2\sqrt{x}\cdot\frac{1}{2}-\frac{1}{4}+\frac{1}{4}=-\left(\sqrt{x}-\frac{1}{2}\right)^2+\frac{1}{4}\le\frac{1}{4}\Leftrightarrow x=\sqrt{\frac{1}{2}}\)
tim gia tri lon nhất của: (căn bậc hai của((x-2)(6-x)))
gia tri nguyen nho nhat cua x de 13 phần căn bậc x -8 nhận giá trị nguyên
tim gia tri lon nhat cua bieu thuc A=3-4x/x2+1
cho x^2+y^2+z^2=3. tim gia tri nho nhat va lon nhat cua P=x+y+2z
Tim gia tri lon nhat cua bieu thuc p=-x^2+13x+2012
tim gia tri lon nhat cua A=\(\frac{4x^2}{x^4+1}\)
tim gia tri lon nhat cua bieu thuc sau:
C=2/x2-6x+15
tim gia' tri. lon' nhat' cua? bieu thuc
F=-x^2-4x+20
tim gia tri nho nhat va lon nhat cua A=x+y+1 biet x^2 +2xy +7(x+y)+2y^2+10
ai giup minh vs mai nop roi Thank thank ^-^<3