tim x nguyen de cac bieu thuc sau dat gia tri nho nhat : x+5/x-4
bai 1 tim x nguyen de cac bieu thuc sau dat gia tri nho nhat
D=x+5 phần x-4
Tim gia tri cua x de bieu thuc A=|x-3|+(-100)co gia tri nho nhat ,tim gia tri nho nhat ay
gia tri cua x de a=(-3-x)^2+5 dat gia tri nho nhat
cho phan so \(B=\frac{4n+1}{2n-3}\)n thuoc z
a, tim n de phan so B toi gian
b, tim n de B dat gia tri nho nhat , gia tri lon nhat va tinh cac gia tri do.
cho A = 1/15 nhan 225/(8+2) + 3/14 nhan 196/(3x+6) (x thuoc Z; x khac -2 )
a) Rut gon A
b) Tim x thuoc Z de A thuoc Z
c) trong cac gia tri nguyen A tim gia tri lon nhat va gia tri nho nhat
cho bieu thuc A=x+5 voi x E z x ko phai -2 tim x de A dat gia tri lon nhat
x+2
tim so nguyen n de A = 6n-1/3n+2 dat gia tri nho nhat . nhanh len can gap
Tim gia tri nho nhat cua bieu thuc: P=|x|+7
(x€Z)
Tim gia tri lon nhat cua bieu thuc :Q=9-|x|
