tim so nguyen n de A=3n+2/n co gia tri la mot so nguyen
tim tat ca cac gia tri nguyen cua n de phan so A=3n+2/n-1 co gia tri la so nguyen
Cho cac bieu thuc
A=n+6 phan n-5 va B=3n-9 phan n-6
a/ Tim gia tri nguyen cua n de A, B la phan so ?
b/ Tim gia tri nguyen cua n de A, B co gia tri nguyen?
c/ Tim gia tri nguyen cua n de A, B co gia tri nguyen lon nhat?
tim cac gia tri nguyen cua n de phan so 6n-3 / 3n +1 co gia tri la so nguyen
tim cac so nguyen n de cac phan so sau co gia tri la mot so nguyen
n-5/n-3
tim so nguyen n de phan so 4n+5/2n-1 co gia tri la mot
so nguyen
Cho A=n+3/n+2 voi n€z
a)tim dieu kien cua so nguyen n de A la phan so
b)tinh gia tri cua phan so A khi n=1;n=-1
c)tim so nguyen n de phan so A co gia tri la so nguyen
cho B=n/n-3(n thuoc Z , n khac 3)
tim tat ca cac gia tri nguyen cua n de B la so nguyen
CHo C= 3n+5.n+7(n thuoc Z, N khac -7)
tim tat ca cac gia tri nguyen cua n de C la so nguyen
A=n-1/n+2
a, Voi gia tri nao thi A la phan so
b, Tim so nguyen n de A=0
c,tim so nguyen n de A co gia tri nguyen