\(A=\left|x+y\right|+\left|x+3\right|+2014\ge0+0+2014=2014\) ; vì \(\left|x+3\right|\ge0\)\(;\left|x+y\right|\ge0\)
Min A =2014 khi x+3 =0 hay x =-3
và x+y =0 hay y =-x = -(-3) = 3
Tim gia tri cua x de bieu thuc A=|x-3|+(-100)co gia tri nho nhat ,tim gia tri nho nhat ay
Tim gia tri nho nhat cua bieu thuc: P=|x|+7
(x€Z)
Tim gia tri lon nhat cua bieu thuc :Q=9-|x|
a, tim gia tri nho nhat cua bieu thuc :\(A=\)\(|x+19|+|y-5|+1890\)
b,tim gia tri lon nhat cua bieu thuc:\(B=-|x-7|-|y+13|+1945\)
cho x+y=5 tim gia tri nho nhat cua bieu thuc A=|x+1|+|y-2|
Tim gia tri nho nhat cua y de bieu thuc B=100-|y+3| co gia tri lon nhat, tim gia tri lon nhat do
tim gia tri nho nhat cua bieu thuc N=/x-3/+10
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 bieu thuc: A=|x-3|+2,x thuoc Z
cac cau giup voi
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
