Ta có:
\(A=\frac{n+3}{n-2}=\frac{\left(n-2\right)+5}{n-2}=1+\frac{5}{n-2}\)
Để A nhận gt trong tập hợp số nguyên thì
n-2 thuộc Ư(5)
=>n-2=(-5;-1;1;5)
=>n=....
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 tat ca cac gia tri nguyen cua n de phan so A=3n+2/n-1 co gia tri la so nguyen
tim cac gia tri nguyen cua N de phan so A= 2n+5 phan n+3
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?
Cho phan so A = n+1/n-3 (nCZ)
a) Tim cac gia tri cua n de A la phan so
b) Tim n de A co gia tri 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
1. Cho bieu thuc A=\(\frac{-4}{n-1}\)(voi n\(\in\)Z)
a. So nguyen n phai co dieu Kien gi de A la Phan so
b. Tin cac so nguyen n de A co gia tri nguyen
2. Cho Phan so B= \(\frac{n}{n-4}\)(voi n\(\in\)Z)
a. Tim cac so Nguyen n de B la phan so
b. Tim tat ca cac so nguyen n de B co gia tri nguyen
3. Chung minh rang cac Phan so sau Co gia tri la so tu nhien
a. \(\frac{10^{2016}+2}{3}\)
b.\(\frac{10^{2016}+8}{9}\)
Tap hop cac so nguyen n de A = 44 phan 2n - 3.(Nhap gia tri theo thu tu tang dang)
