Tim gia tri lon nhat cua :
C = -(x + 2) 2014 + 5
Vì (x + 2)2014>=0 => -(x + 2)2014<=0 => -(x + 2) 2014 + 5 <=5
Dấu "=" xảy ra khi -(x + 2)2014=0
=> x + 2 = 0
=> x = -2
Vậy Cmax=5 khi x=-2
C = 5 - ( x - 3)2
Vì (x - 3)2>=0 => 5 - (x - 3)2 <=5
Dấu "=" xảy ra khi (x - 3)2 = 0
=> x - 3 = 0
=> x= 3
Vậy Amax=5 khi x = 3
Tim gia tri cua x va y de bieu thuc C = -|x-2|-|y-3|-2009 co gia tri lon nhat ,tim gia tri lon nhat do
tim gia tri lon nhat cua A=2018-/x-7/-/y+2/
tim gia tri nho nhat cua B /x-500/+/x-300/
tim n thuoc Z,biet: a,3.n+2 chia het cho n-1; b, n^2 +5 chia het cho n+1
Tim gia tri nho nhat hoac gia tri lon nhat cua bieu thuc D = (x + 5)^2 + (2y - 6)^2 + 1
tim gia tri nho nhat cua B=|x +2015|+2016
tim gia tri lon nhat cua C=1982-|x-6|
tim gia tri lon nhat hoac nho nhat cua cac bieu thuc sau
c)C= \(3+|x-2|\)
d)D=\(5-|2x-1|\)
Tim gia tri lon nhat hoac nho nhat cua cac bieu thuc sau
a, C=(x-1)2+\(|2y+2|\)-3
tim gia tri lon nhat hjoac nho nhat cua/x-1/ +/x-2/=A
tim gia tri cua A lon nhat = 6/x^2 +3
giúp với
Tim gia tri nho nhat cua bieu thuc: P=|x|+7
(x€Z)
Tim gia tri lon nhat cua bieu thuc :Q=9-|x|
