cho ham so y=2x^2-3X+1,gia tri lon nhat x thoa man f(-x)=f(2x) la x=?
help me!!!
Cho hai so Thưc duong x, y thoa man x>=2y.Tim gia tri nho nhat cua bieu thuc P=(2x^2+y^2-2xy):xy
cho x,y dương thoa man : x^2/9 + y^2/16 = 36. tim gia tri lon nhat cua p =x-y+2004
cho x ,y thoa man x+3y=2
tim gia tri lon nhat cua p=x2+y2
cho ham so y =(2m-4)x-1. Tim m de do thi ham so dong quy voi hai duong thang y = -x+1 va y=2x-5
Gia tri cua m la
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 2 so duongx,y thoa man\(x\ge2y\) tim gia tri nho nhat cua phuong trinh \(P=\frac{2x^2+y^2-2xy}{xy}\)
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
tim tap xac dinh cua ham so
y=3nhan x binh phuong -x tren cho( gia tri tuyet doi cua x binh phuog -x) +(giá tri tuyet doi cua x-1)
y=(can x+2)+(can 3-2x) tren cho (gia tri tuyet doi cua x) -1