cho bieu thuc A = 2006 -x / 6-x tim gia tri nguyen cua x de A dat gia tri lon nhat. Tim gia tri lon nhat do
cho bieu thuc A = 2012 / 9 - x . Voi gia tri nguyen cua x thi A co gia tri lon nhat ? Tim tri lon nhat do .
tim gia tri lon nhat cua A=/x/+5/2/x/+3
Bai 5
a)Tim gia tri lon nhat cua A=2016 phan (x-2)2 +(x-y)4+3
b)Tim cac gia tri cua x sao cho A=7-x phan x+2 co gia tri duong
tim gia tri nho nhat cua
A=|3,7-X|+2,5
B=|X+1,5|-4,5
tim gia tri lon nhat cua
C=1,5-|x+1,1|
D=-3,7-|1,7-x|
tim gia tri lon nhat cua x biet a=0,7-[3X-1]
Tim gia tri lon nhat cua bieu thuc P = -2|x-1|-7
tim gia tri lon nhat cua bieu thuc A=|X-1006|-|X+1014|
tim gia tri lon nhat cua R=2013/[(x-2)^2+(x-y)+3]