Tim gia tri nho nhat cua bieu thuc: P=|x|+7
(x€Z)
Tim gia tri lon nhat cua bieu thuc :Q=9-|x|
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 lon nhat hoac nho nhat cua cac bieu thuc sau
a, C=(x-1)2+\(|2y+2|\)-3
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: A=|x-3|+2,x thuoc Z
cac cau giup voi
Tim gia tri nho nhat hoac gia tri lon nhat cua bieu thuc D = (x + 5)^2 + (2y - 6)^2 + 1
cho bieu thuc 2n+1/n+5(n thuoc Z)
a, tim n de Pco gia tri la 1 so nguyen
b,tim gia tri lon nhat,gia tri nho nhat cua P
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|
