cho A = 5 / can bac 2 cua x - 3
tin x thuoc z de A co gia tri nguyen
căn bậc 2 của x rồi trừ cho 3
Tim gia tri cua x de A = -1 :
A = &x-5 /&x+3 ( & nghia la can bac 2 )
bai 1:Tim x,y,z \(\varepsilon\)Z ,sao cho :|x-y|+|y-z|+|z-x|+|z-t|+|t-x|=2003
bai 2:Cho bieu thuc:E=\(\frac{5-x}{x-2}\)tim gia tri nguyen cua x de
a) E co gia tri nguyen
b)E co gia tri nho nhat
cho P=\(\frac{9}{\sqrt{x-5}}\). tim x thuoc Z de A co gia tri nguyen
Cho A =6 phan can x+2
a) tinh gia tri A tai x=0,9,4 phan 25
b) tim x =? De :
1)A= 1 phan 2
2) A nho hon 3
c) tim x thuoc z de A thuoc z
Tim x thuoc z de bieu thuc sau co gia tri nguyen:M=x+2/3
cho M(x)=x2-x-2.Tim x thuoc Z de M(x) co gia tri la so nguyen to
Cho M :x-2/x+3
a, Tim x € Z de M co gia tri nguyen
b, Tim x € Z de M la gia tri nho nhat . Tim gia tri nho nhat do
Cho bieu thuc \(A=\frac{5-X}{X-2}\) .Tim gia tri nguyen cua x de
a) A co gia tri nguyen .
b) A co gia tri nho nhat .