Các câu hỏi tương tự
1.cho \(M=\frac{2013+x}{2014-x}\)voi x la so tu nhien thi gia tri lon nhat cua M la ?
2. cho x va y thoa man 2x2+12y2-8x-12y+11=0
tim gia tri lon nhat cua A=\(\frac{4x^2}{x^4+1}\)
Cho bieu thuc A = ( 1/ x^2 - x + 1/x-1):x+1/x^2 -2x +1 ( x khac 0;1;-1)
a) Rut gon bieu thuc A
b) Tinh gia tri bieu thuc A khi x=2014/2013
c)Tim dieu kien cua x de A co gia tri lon hon 1
tim gia tri lon nhat
x-x2
tim gia tri lon nhat
A=4-x^2+2x
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? bieu thuc
F=-x^2-4x+20
tim gia tri lon nhat
-x^2-y^2+2xy+xy+2x