bai 1

cho bieu thuc A = 5/n+1 voi N THUOC Z

a, de A la phan so thi n co dieu kien gi ?

b , tim tat ca cac gia tri nguyen cua n de gia tri A la 1 so nguyen ?

bai 2

cho bieu thuc M = 6/n-3 voi n thuoc Z .Co bao nhieu gia tri cua n de :

a, M ko phai la phan so

b , M la phan so va cp gia tri nguyen ?

bai 3 viet tap hop cacs so nguyen sao cho :

-12/4 < x <6/3

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 bieu thuc B=4/n-3 voi n la so nguyen

a, so nguyen n phai co dieu kien gi de B la phan so

b, Tim so B biet n=0;n=10;n=-2

                     THANKS NHIU

Cho bieu thuc B= 7/ n -7

a) So nguyen n phai co dieu kien gi de B la phan so.

b) Tim phan so B biet n = -7

c) Tim cac so nguyen n de B la so nguyen.

bn nao co loi giai chi tiet bai nay mk se tick,vi mk  dung dien thoai ko viet dau dc nen cac ban  thong cam nha.

Cho Bt : n-3/n-5

a,Tinh gia tri cua A biet n = 6 

b,So nguyen n phai co dieu kien gi de A la phan so ?

c, Tim n de A nhan gia tri nguyen

1. Cho Phan so B=\(\frac{n}{n-4}\)(voi n \(\in\)Z)

a. Tim So nguyen n de B la Phan so

b. Tim so Nguyen n de B co Gia tri la so tu nhien

2. Tim cac so nguyen x, y biet

a.\(\frac{x}{-3}=\frac{4}{y}\)

b. \(\frac{2}{x}=\frac{y}{-9}\)

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?

https://hoc24.vn/cau-hoi/bai-1-cho-bieu-thuc-p-11n-n-thuoc-z-a-tim-dieu-kien-cua-n-de-p-la-phan-sob-tim-phan-so-p-biet-n3-n5-n9c-tim-n-de-p-nguyen-bai-2.332315455557

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