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 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

tim so tu nhien n de phan so n + 3/ 7n + 1 co gia tri la so nguyen 

cac banj thong cam may minh ko co dau

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

Cho bieu thuc A = 3/n-2

a) Tim cac so nguyen n de bieu thuc A la phan so

b) Tim cac so nguyen n de A la mot so nguyen

Cac giup minh nhe minh dang can gap.

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 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?

bai 1:tim so nguyen x sao cho gia cua cac phan so la so nguyen

a)x+3/x-2

b)x²+3x-2/x+2

chu y:dau / la dau chia trong phan so

bai 2:cho A=2n+1/n-2 voi n la so nguyen

a)tim n de a la phan so

b)tim n de A nguyen

c)tinh gia tri cua A biet:n=2;1;-2;-1

giup minh voi minh dang can.Ai dung minh tick cho